TC-Standard (+) X2
Connection via plug
The device is equipped with connectors according to EN 175301-803 for mains and status output. If the cables are mounted prop-
erly, they cannot be interchanged. Please make sure that the connectors are remounted correctly after connecting the cable. The
following figures show the pin assignment with respect to the numbers printed on the connector.
The supply line cross-sections must be suitable for the rated current. Use a maximum line cross-section of 1.5 mm² (AWG 16) and
a cable diameter of 8 - 10 mm (0.31 - 0.39 inch).
Plug numbering
Electric supply S1
115/230 V (24 V DC)
Alarm contact S2 *
Analogue output S3
1 - N/C
2 - N/C
3 - GND
4 - 4-20 mA out
5 - shield
(+24 V)
(-24 V)
*
* When using an alarm contact connect to ≥ 33 V AC or ≥ 70 V DC PE voltage.
The clamping area has a diameter of 8 - 10 mm (0.31 – 0.39 inch).
4.4 Signal outputs
The device provides different status signals. The maximum switching load of the alarm outputs is limited to 250 V AC/150 V DC,
2 A, 50 VA each.
An alarm is triggered by the alarm contact/status output (S2) if the temperature of the cooler is outside the specified limits. It
does not indicate if the alarm was triggered due to excess temperature or insufficient temperature.
The front film has three LEDs:
Colour
Marking
Function
Red
S2
High/low temperature, device error
Yellow
S1
---
Green
OP
Normal operation
The LEDs OP and S2 indicate the device status similar to S2.
If the option “temperature signal” is built in, the unit has a signal output via the analogue output to indicate the actual cooler
temperature.
When the moisture detector (optional) is installed, an alarm is activated by the alarm contact/status output (S2) if the moisture
is still present in the prepared sample gas. Thereby, no distinction is made between the alarm/cable break triggered by moisture
detector 1 or 2. This information is displayed by an error message instead.
The temperature signal can be read via the panel plug (S3) using the M12x1 connector. This plug is located next to the moisture
detector connectors at the top of the cooler.
15
Bühler Technologies GmbH
BE440023 ◦ 10/2018
