Dwyer 40M User Manual
Page 2
Parameter
SP
CA1
P0
P1
P2
P3
P4
P5
r0
r1
r2
r3
r5
C1
C2
C3
C4
C5
d0
d3
d4
d5
d6
A1
A2
A3
A4
A5
A6
A7
E9
Description
Set point
Ambient probe adjustment
Type of input probe
Decimal point position
Display units
Minimum process input value
Maximum process input value
Value displayed during normal operation
Set point differential
Minimum set point value
Maximum set point value
Set point locked
Cooling or heating
Minimum time between compressor starts
Minimum compressor stoppage time
Minimum on time of compressor
Off time of fault cycle
On time of fault cycle
Interval between defrost
Duration of defrost cycle
Defrost on power up
Defrost delay upon power up
Display during defrost cycle
Alarm set point 1
Alarm delay for A1
Alarm 1 type
Alarm delay upon set point modification
Alarm set point 2
Alarm delay for A2
Alarm 2 type
Reserved for future use
Units
Degrees
Degrees
Option
Option
Option
Counts
Counts
Option
Degrees
Degrees
Degrees
Option
Option
Minutes
Minutes
Seconds
Minutes
Minutes
Hours
Minutes
Option
Minutes
Option
Degrees
Minutes
Option
Minutes
Degrees
Minutes
Option
None
Range
r1 to r2
-25 to 25
0 to 13
0 or 1
0 or 1
-999 to 1999
-999 to 1999
0 or 1
0.1 to 99.0
-199.0 to r2
r1 to 1999
0 or 1
0 or 1
0 to 240
0 to 240
0 to 240
0 to 240
0 to 240
0 to 99
0 to 99
0 or 1
0 to 99
0 or 1
-199 to 1999
0 to 240
0 to 4
0 to 240
-199 to 1999
0 to 240
0 to 4
None
Factory Setting
0.0
0.0
0
1
0
-20
80
0
2.0
0.0
350.0
0
1
0
0
0
10
10
8
0
1
0
1
0.0
0
0
0
0.0
0
0
None
PARAMETER LIST
PARAMETER DESCRIPTION
SP
Sets ambient temperature set point between r1 and r2
CA1
Ambient probe calibration adjustment
P0
Type of input probe
P1
Position of decimal place
P2
Display engineering units
0 = °C
1 = °F
2 = No units
P3
Minimum value for process input
P4
Maximum value for process input
P5
Value shown during normal operation
0 = Probe temperature
1 = Set point
r0
Set point differential or hysteresis
r1
Minimum value for set point
r2
Maximum value for set point
r3
Set point lock out
0 = Unlocked
1 = Locked
r5
Selection of heating/cooling operation
0 = Cooling
1 = Heating
C1
Minimum time between compressor starts
C2
Minimum time compressor must remain off before being restarted
C3
Minimum time compressor must remain on after being started
C4
During probe error, time compressor is off
C5
During probe error, time compressor is on
d0
Interval of time between defrost cycles (if 0, defrost will never be activated)
d3
Duration of defrost cycle
d4
Start defrost cycle upon power up
0 = No
1 = Yes
d5
Defrost delay time upon power up (d4 must be 1)
d6
Temperature shown during defrost
0 = Display probe temperature
1 = Display probe temperature up to (set point + r0) if probe temperature is below (set point + r0) at activation of
defrost cycle. Display probe temperature if the probe temperature is above (set point + r0) at activation of defrost cycle.
A1
Alarm 1 temperature set point
A2
Alarm 1 not activated unless temperature remains in alarm state for this time
A3
Alarm 1 type
0 = Alarm disabled
1 = Absolute low alarm (A1)
2 = Absolute high alarm (A1)
3 = Deviation low alarm (SP - A1)
4 = Deviation high alarm (SP + A1)
A4
Temperature alarms not activated for this time after modifications to set point
A5
Alarm 2 temperature set point
A6
Alarm 2 not activated unless temperature remains in alarm state for this time
A7
Alarm 2 type
0 = Alarm disabled
1 = Absolute low alarm (A1)
2 = Absolute high alarm (A1)
3 = Deviation low alarm (SP - A1)
4 = Deviation high alarm (SP + A1)
E9
Reserved
WIRING
Avoid installing the temperature probe cables in close proximity of any
power cables. If the length of the probe cables is longer than 100 meters,
a recalibration adjustment may be made using the CA1 parameter.
40T
0 = J type thermocouple
1 = K type thermocouple
2 = 3 wire Pt100 RTD
3 = 2 wire Pt100 RTD
40M
0 = PTC
1 = NTC
2 = J Type Thermocouple
3 = K Type Thermocouple
4 = 3 wires Pt 100
5 = 2 wires Pt 100
6 = 3 wires Pt 1000
7 = 2 wires Pt 1000
8 = 4-20 mA
9 = 0-20 mA
10 = 2-10 V
11 = 0-10 V
12 = 3 wires Ni 120
13 = 2 wires Ni 120