Service manual

A DJM3.2 MANUAL
NOTE: The readable range is 0 to 55ºC. At higher temperatures the reading accuracy is
reduced. Typically at 50ºC the reading will indicate 2-3ºC lower than actual.
XX. DISCHARGE/ROOM SENSOR READOUTS, CALIBRATION, ETC.
TE 6000 Discharge Sensor Self-Test
If the discharge sensor resistance is greater than 4000-ohms or less than 880-ohms, the unit will lock
out either on low limit or bad temperature sensor. The DJM3.2 uses the discharge sensor for both
temperature control and low limit. Because of this, the DJM3.2 will not operate with a bad discharge
sensor. If the DJM3.2 locks out due to an open discharge sensor LED 1 will flash rapidly (one-second
flash).
TE 6100 Resistances
Sensor (purple and blue wires) – same resistance as TE 6000-960. Refer to the following chart.
TE6100-960 Sensor/Set Point
SENSOR
(purple and blue)
Same resistance as TE 6000-960
Set-Point Dialled To
60 degrees 90 degrees
(orange and grey)
2.725 K Ω 3.272 K Ω
(orange and blue)
3.184 K Ω 2.702 K Ω
POT
(blue and grey) 970 Ω
(purple and orange)
4.19 K Ω 3.71 K Ω
OTHER
(purple and grey)
About 1.981 K Ω (varies with element temp.)
Sensor Resistance Chart for TE 6100-960 and TE 6000-960
°C °F
Resistance Σ
°C °F
Resistance Σ
°C °F
Resistance Σ
-40 -40 602-605 18.3 65 983 48.9 120 1234
-34.4 -30 633 20 68 996 54.4 130 1269
-28.9 -20 665 20.6 69 1000.7 60 140 1333
-23.3 -10 698 21.1 70 1005 65.5 150 1365
-17.8 0 732 23.9 75 1026.5 71.1 160 1437
-12.2 10 768 26.7 80 1048 76.7 170 1491
-8.7 20 804 29.4 85 1070 82.2 180 1546
-1.1 30 842 32.2 90 1092 87.7 190 1602
4.4 40 881 35.6 95 1116 93.3 200 1659
10 50 921 37.8 100 1139 98.8 210 1718
12.8 55 941.5 43.3 110 1186 100 212 1778
Reference resistance is 1035 ohms at 77°F. Resistance tolerances are ±0.05 to 0.15% at 77°F.
Temperature range +32 to +104°F. (TE 6100-960 pot is 53C3, 500R, 7/8 by
¼ shaft.)
NOTE: Engineered Air’s normal design discharge temperature range is 30 to 140ºF.
Page 24 Revised: 3/11/99