The MDJ315-2DPEx intrinsically safe controller
The MDJ315-2DPEx intrinsically safe controller is designed for the control of technological processes in underground areas of mines. It can be operated in excavations with potentially explosive atmospheres with the ‘a’, ‘b’ and ‘c’ hazards of methane explosion and ‘A’ or ‘B’ hazards of coal dust explosion.
The device performs as a PLC controller with its CPU that is software compatible with the CPU315-2DP unit from Siemens. The controller can be programmed with the standard Step-7 software from Siemens.
The ET2000Ex-F intrinsically safe controller
The ET2000Ex-F intrinsically safe controller is usually operated as an intrinsically safe I/O module with the Profibus DP communication facilities. It can collaborate with the MDJ315-2DPEx controller or other PLCs furnished with the Profibus communication port. PLC controllers can be located outside the areas with potentially explosive atmospheres and communicate with the ET2000Ex device via a fibre optic cable or intrinsically safe RS485 network. These controllers can be also designed as redundant devices and then can be used as key components of the Intrinsically Safe System for Shaft Communication, namely as local stations that handle communication at individual levels of the shaft. The ET2000Ex controller can be operated in areas with potentially explosive atmospheres with the 'a', 'b' and 'c' hazards of methane explosion and 'A' or 'B' hazards of coal dust explosion.
The MDJ7001 flameproof computer
The MDJ7001 flameproof computer is a device designed for visualization of technological processes controlled by underground automatic systems where the computer exchanges information with PLC controllers. In particular, it is suitable for collaboration with intrinsically safe controllers of the MDJ315-2DPEx, ET2000Ex and MDJ6001 types. Typically the computer handles the Ethernet, Profibus, MPI and Modbus RTU network protocols as well as others depending on the software installed.
By default the appliance is delivered with the WinCC Flexible software package. The computer can collaborate with a simplified nine-button keypad or a standard QWERTY keyboard and is designed for operation in potentially explosive atmospheres with the 'a', 'b' and 'c' hazards of explosion.
VIVO-2 device is used for loud-speaking communication and for transmitting warning and communication signals in mine shafts between any levels, along communication routes, belt conveyors, armored conveyors, rail systems, floor mounted rail systems, suspended rail systems and other processes in underground mines. VIVO is an explosion proof device group I category M1.
Intrinsically safe weighing scales for belt conveyors REX-01
Intrinsically safe weighing scales for belt conveyors The REX-01 weighing scales is an intrinsically safe device designed for application in underground areas of mines. It can be operated, depending on the software installed, as a weighing device for belt conveyors or for tanks. The tank weighing scales is dedicated to measuring the weight of liquid or bulk material stored inside a tank or container. The weighing appliance for belt conveyors is meant for the continuous measurements of bulk material transported by means of a belt conveyor. The REX-01 weighing device is integrated with the MDJ315-2DPEx or ET2000Ex controllers and can be configured and programmed by means of Step-7 software from Siemens.
The MDJ6001-F intrinsically safe controller
The MDJ6001-F intrinsically safe controller is a device designed for monitoring and control of technological processes in underground areas of mines.
It can be operated in excavations with hazards of methane or coal dust explosion. Typically it is employed as a PLC controller than can be programmed in C language and used for the control of relatively simple technological systems.
ZIREP - unit of intrinsically safe pneumatic solenoid manifolds
The unit of intrinsically safe pneumatic solenoid manifolds (ZIREP) is designed for the control of pneumatic equipment in the mining industry. The ZIREP manifold can be operated in excavations with hazards of methane and coal dust explosion.
The SEP-16 separator for galvanic decoupling of intrinsically safe and non-intrinsically safe signals
The SEP-16 separator for galvanic decoupling of intrinsically safe and non-intrinsically safe signals is a device that enables separation between intrinsically safe circuits of ia or ib classes and non-intrinsically safe circuits. The device enables the transmission of signals from both the intrinsically safe side to the non-intrinsically safe side and vice versa.
The maximum number of signals that can be transmitted via the galvanic barrier is 16. These signals are structured into four groups of signals with four signals per each group. Each group can be individually set to transmission of intrinsically safe signals to the non-intrinsically safe side or vice versa. Hence, any arrangement of 16 input and output signals is possible with subdivision into four groups. The device can be supplied from the non-intrinsically safe side with the a.c. voltages (42 VAC, 127VAC or 230VAC) or d.c. voltages (12 VDC, 24 VDC or 110 VDC).
Fiber optic converters TC3 and TC3-SM
Fiber optic converters TC3 and TC3-SM are designed to convert electrical signals (non-intrinsically safe) RS485 standard for optical signals. The TC3 type converter is equipped with three Optical ports designed to work with multimode or single-mode optical fibers.
The MDJ-OCE 1000 module is an SFP
The MDJ-OCE 1000 module is an SFP (Small Form Factor Pluggable) fiber transceiver whose design is compatible with the standard: Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The module allows for fiber optic transmissions with a range of up to 10km with 9 / 125um single-mode fiber. SFP module MDJ-OCE 1000 type has a standard structure of the SFP module - which is an insert to be installed inside the network device (switches, media converter). Fiber optic module SFP type MDJ-OCE 1000 It is intended for use in fiber optic installations of the optical system o type of explosion protection "op is".
The intrinsically safe mining banner ITG-01
The intrinsically safe mining banner ITG-01 is designed to highlight permanent warning or information messages. The location of the banner and the content of the messages are determined by the user, depending on their needs. On request the message can also be graphic symbols. The ITG-01 banner is able to adjust the backlight brightness and to control the illumination of the banner.
Digital telephone system STG-20 mining Telephone
The STG-20 mining telephones are used for telephone communication in the digital system with the use of telecommunication wired cables, and through the MTR-T transmission module cooperating with the telephones, also with the use of fiber optic cables. The telephone communication system based on STG-20 telephones does not require the installation of an expensive and space-consuming telephone switchboard. The system allows you to conduct up to three independent calls at the same time. The high volume of the call signal and a very visible optical signaling device ensure the effectiveness of the call even in rooms with a high level of noise. STG-20 telephones are explosion-proof devices of group I category M1.
Power supplier with intrinsically safe output type
The power supply type PSAL-18/1 equipped with an intrinsically safe output is an accompanying device powered by the 220 / 230V, 50 Hz voltage of which the intrinsically safe output circuit with a nominal voltage of 18V can be introduced into hazardous areas to supply intrinsically safe devices of group I, category M1 / M2 with a current consumption up to 1A. The power supplier consists of a metal box with connection strips for non-intrinsically safe input circuits and an intrinsically safe output circuit. An auxiliary signal in the form of a semiconductor contact is also led outside the power supply with a diode indicating that the power supply has not exceeded the rated current. The power supply design is adapted for hanging inside the control cabinet. The PSAL18 / 1 power supply is designed for installation in non-hazardous rooms or in flameproof cases.
The rope tension monitoring system MDJ-301
The rope tension monitoring system allows direct measurement of rope tension in mining hoists. It also allows you to measure accelerations and vibrations during the movement of the hoist vessel. The system can be used to equalize rope tension in multi-rope shaft hoist systems as well as to control the tension of guide ropes and to measure skip weight or cage weight. The application and proper use of this system by maintenance services responsible for the safety of mining shaft hoists allows for reducing the risk and eliminating danger caused by the unequal value of forces in shaft hoist ropes.
The flameproof intrinsically safe power supply unit of the OZZI-IPSU
The flameproof intrinsically safe power supply unit of the OZZI-IPSU type is the group's underground device I category M2 used to supply intrinsically safe devices of group I category M1 with a level of security and a.
The OZZI-IPSU unit can contain up to 12 power supplies with an intrinsically safe output type IPSU-24/400, prod. MDJ Electronic, marked I (M1) [Ex ia Ma] I, KDB 21ATEX0006X certificate.
LSO-1x, Buzz24, SB-01
The LSO-1x light signalling module is an external module of the intrinsically safe controller, intended for use in signalling circuits and in the control of mining machines. The device is used for the optical signalling of alarms, warnings or information. The x symbol in the LSO-1x marking type, where x specifies the colour of the light.
The Buzz24 acoustic module is an external module of the intrinsically safe controller, intended for use in signalling circuits and the control of mining machines. The device can be used for generating audible alarm, warning or information signals. The Buzz24 acoustic module generates a uniform signal with a frequency of approx. 2.9kHz. It is possible to modulate the sound controlling the PWM signal.
Intrinsically safe SB-01 emergency switches are designed for the emergency switching off of machine drives and devices and blocking their restart. They perform a function in mining automation systems. Emergency switches in a stainless steel housing are available in many versions as twist, push-pull or under lock buttons with a protective collar around the button (to prevent accidental activation).
Intrinsically safe inductive sensor type PCINBACH 15
The intrinsically safe PCINBACH 15 type inductive sensor is a two-wire device designed to signal the presence of metal objects near its face in the sensitive zone. This sensor uses the change in the output resistance depending on the position of the metal object in its sensitivity zone. The intrinsically safe PCINBACH 15 sensor is designed to detect the position of gates, platforms, shaft barriers, points, etc. in underground mines, in particular for recording the position of shaft gates, points and platforms. The intrinsically safe PCINBACH 15 sensor can be used in potentially explosive atmospheres of Group I, category M1. The sensor output is an intrinsically safe circuit with the „ia” protection level.