Temperature Relay Type TR640IP
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Temperature Relays TR640IP monitor up to 6 sensors for up to 4 limits. Different sensors can be connected at the same time, e.g. Pt 100 (RTD) and PTC thermistors. Typical applications are monitoring of motors, generators or transformers. An other application is the use as a two or more step controller with additional monitoring of over- or undertemperature or monitoring of differences in temperatures of 2 sensors.
Preset programs allow easy setting e.g. monitoring of transformers with/without monitoring of temperature of core or with/without controlling a ventilator.
If evaluation "2 out of x" is activated with several connected sensors, an alarm is only triggered when the limit value is exceeded in 2 sensors. This prevents false alarms due to a fault in one sensor. Operation can be made at the device or with a standard browser via Ethernet.
- 6 inputs for sensors Pt 100, Pt 1000 and PTC, mixed sensors possible
- 4 alarms / relay outputs
- alarm 2 of x = alarm only when limit is exceeded in min. 2 sensors
- monitoring of difference of temperatures
- monitoring of rate of change of temperature
- logging of temperatures and history
- preset programs for protection of motors, transformers and more
- interface ethernet TCP/IP, values available via modbus TCP
- programming with browser via TCP/IP or with joystick at device
- coloured LED display for clear display of temperatures and states of alarms
- universal power supply AC/DC 24-270 V
- Accessory: Installation frame ER6 for panel mount
| Product group: | Temperature Measurement, New Products |
|---|---|
| Input/ Measured parameter: | Measuring input other temperature sensors, PTC, Pt 100 |
| Outputs: | Outputs/Relays, Ethernet TCP/IP |
| Supply voltage: | AC/DC 24 - 270 V |
| Design: | Mount in switchgear cabinet, Mount in circuit breaker box |
| Approval: | UL/CSA, UKCA |
| Extras: | Temperature relays, 3 or more sensor inputs, Reclosing lock |
| Applications: | Wind energy plants, Protection of transformers, Protection of pumps |
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You found a device in that meets your requirements and you want to install it in a control panel or in the door of a control cabinet?With the installation frame of the ER series, this is possible for all ZIEHL devices in housings V4, V6 and V8 (width 70/105/140 mm).Enclosed by a high-quality frame made of anodized aluminum, all displays can be read outside the control cabinet. Switches, buttons and joystick can be operated.
Normal PTC-resistor relays can be tested by simply disconnecting the sensor. PTC-resistor relays with monitoring of sensor short-circuit and break need more sophisticated test-equipment.With help of the ZIEHL MS-Tester also these relays can be easily tested for correct function. The included cable is designed for the connection of relays type MSF 220 V(U). Also any other PTC-resistor relay can be connected to the MS-Tester.Testdisconnect the PTC-resistor relayconnect the MS-Tester (T/0, T/1 and/or T/3) to the sensor inputsswitch on the relayincrease the resistance with the potentiometer (turn slowly) until the appropriate Alarm switchesreduce the resistance until the relay switches back (or a LED signals, that it is ready to switch back)if necessary, the values of the switching points can be measured at the terminals T/0, T/1, T/2 after disconnecting the relay. Typical values are 3000 O ... 4000 O for tripping and >1500 O for switching back.test break with push-button (only at relays with monitoring of sensor/line-break)test short circuit with push-button (only at relays with monitoring of sensor/lineshort-circuit)ATTENTION: At relay MSF 220 V(U), break or short-circuit in any sensor will result in an error message = ALARM 1. The LED "sensor" lights and the LED of the appropriate alarm blinks.HINT: cold PTCs have a resistance of 20...250 O, typical 50...120 O per sensor.
