ThermoFlex C-1
Thermo Scientific
Appendix C
Analog I/0 and Remote Sensor
Analog I/O Connector Pinout
Install your analog input/output device to the 15-pin female connector on the rear of the chiller. Analog I/O is
activated using the Setup Loop, see page C-3.
PIN NAME
NOTES
DEFINITION
1
DIGITAL GROUND
Common round connection for pins 12, 13 and 14
2
Not
Used
3
LOW LEVEL
Note 1
Dry Relay Contact: Reference to pin 11.
(Only if option chosen)
Closes if either level switch is in the “low” position for more than 1 second.
4
CONFIGURABLE RELAY 2 Note 1
Dry Relay Contact: Reference to pin 11.
Closes when any configured fault or warning occurs, see Table 2.
5
PUMP ON
Note 1
Dry Relay Contact: Reference to pin 11.
Closes when pump is turned on.
Opens when pump is turned off.
6
ANALOG GROUND
Common for analog signals (pins 2, 7 and 15)
7
RESERVOIR TEMP OUT
Note 2
Analog Voltage Output 0-10VDC, 10mV/°C, or 4-20mA: Reference to pin 6.
OR
EXTERNAL SENSOR
This voltage output is proportional to the reservoir fluid temperature:
TEMPERATURE IF
Default scale= 0–10V (where: 0V = Low Temp Span, 10V = Hi Temp Span)
EXTERNAL SENSOR
Optional Range = 10mV/
O
C. (Ex: 200mV = 20°C) (Max Load @ 10V = 5mA)
ENABLED
or 4-20mA, 4mA = low temp span, 20 mA = high temp span (maximum output
current = 5mA @10VDC.
8
LOW FLOW
Note 1
Dry Relay Contact: Reference to pin 11.
(Only if option chosen)
Closes when a low flow occurs while the pump is on. Note: To allow the pump to get up to
speed at startup, the pump runs for 3 - 5 seconds before the low flow sensor is read.
9
CONFIGURABLE RELAY 1 Note 1
Dry Relay Contact: Reference to pin 11.
(Normally Open)
Closes when any of the configured faults occur, see Table 1.
10 CONFIGURABLE RELAY 1 Note 1
Dry Relay Contact: Reference to pin 11.
(Normally Closed)
Complement of pin 9 (open when pin 9 is closed).
11 RELAY COMMON
Common for all relay contacts (pins 3, 4, 5, 8, 9, 10).
12 REMOTE START
Note 3
Connect to pin 1 to allow chiller to be remotely turned on/off through pin 14
ENABLE
REMOTE START.
Note 1: All relay contacts (except for Pin 10) are normally OPEN when power is off. Pin 10 contacts are normally CLOSED when power is off. Relay
contacts are rated: 24V AC/DC, 2A, <= 0.08 Ohm maximum each or 5A total for all relays combined, 1mA minimum, switching capacity: 48VA/48W
(Resistive load only).
Note 2: Default = 0-10VDC
Note 3: Connect to digital ground (pin 1) using a low resistance connection (gold contact relay).
8 7 6 5 4 3 2 1
15 14 13 12 11 10 9
Summary of Contents for ThermoFlex10000
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