Auber Instruments SYL-2381-mA 사용 설명서 - 페이지 7

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Figure 12c. A wiring example for controlling a proportional valve (0-10Vdc or 2-

10Vdc). One 500 Ohms resistor is required (not included).

b. Parameter settings. Set inty = P100, outy = 1, coty = 0-20 mA or 4-20 mA

depending on your valve, rd = 1 (cooling mode), SV = 50° F, AH1 = 54° F, and ot

= 2 for fast response. Adjust Hy (hysteresis band) accordingly. If the input of your

valve is 0-20 mA, 0-5 Vdc or 0-10 Vdc, please set coty = 0 - 20 mA. If the input of

your valve is 4-20 mA, 1-5 Vdc or 2-10 Vdc, please set coty = 4 - 20 mA.

11. Error Message and Trouble Shooting

11.1 Display EEEE

This is an input error message. The possible reasons are, the sensor is not

connected correctly; the input setting is wrong type; or the sensor is defective. If

this happens when using thermocouple sensor, you can short terminal 9 and 10

with a copper wire or paper clip. If then the display shows ambient temperature,

the thermocouple is probably defective. If this happens when using the RTD sensor,

check the input sensor type (Inty) setting first because most controllers are

shipped with input sensor type set for type K thermocouple. Then check the wiring.

The two red wires should be on terminal 9 and 10. The clear wire should be on

terminal 8.

11.2 No output

When outy is set to 1 or 2, the control output is sent to the mA port (pin 6 and 7).

The control output is synchronized with the OUT indicator. The flashing frequency

of the OUT light is an indication of how much mA current is being sent out. When

outy is set to 3 or 4, the control output is sent through J1 relay. The J1 relay action

is synchronized with the AL1 indicator. When AL1 is on, J1 relay should pull in;

when AL1 is off, J1 relay should drop out. If the control signal and the indicator are

synchronized, please check whether the external device is working properly.

11.3 Poor accuracy

Please make sure calibration is done by immersing the probe in liquid. Comparing

the probe reading with a reference probe in air is not recommended because the

response time of probes can vary a lot. Different probes are designed for different

applications, and they can be quite different in their thermal mass, which will affect

their response time a lot. Some of our sensors have response time more than 10

minutes in the air. When the calibration is done correctly in liquid and the error is

5° F or larger, the most common problem for a thermocouple probe is improper

connection between the thermocouple and the controller. A thermocouple needs

to be connected directly to the controller unless thermocouple connector and

thermocouple extension wire are used. A copper connector, copper wire, or

thermocouple extension wire with wrong polarity connected on the thermocouple

will cause the reading drift more than 5° F.

Auber Instruments Inc.

5755 North Point Parkway, Suite 99,

Alpharetta, GA 30022

www.auberins.com

Email: [email protected]

Tel: 770-569-8420

No part of this datasheet shall be copied, reproduced, or transmitted in any way without the

prior, written consent of Auber Instruments. Auber Instruments retains the exclusive rights

to all information included in this document.

2021.05

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