6
FACTORY “TEST” JUMPERS (J1 & J3):
For factory use only. For proper operation, both
jumpers should be left in the “N” (NORMAL) positions.
J5
0 40 (40 HRS)
80
0 40 (80 HRS)
80
0 40 (120 HRS)
80
Jumpers
SHUTDOWN TIMER:
Three (3) time settings are available: 40, 80, and 120
hours. (Shown above in all available configurations)
Timer starts when there is LOW or NO demand for
humidification as indicated by Amber “LOW DEMAND”
LED. Once the timer has timed out, the humidifier
reservoir will automatically drain. The humidifier will
return to normal operation when RH demand occurs.
NOTE: Timer resets every time “LOW DEMAND” LED
goes out.
J4
7.3
2
3
TIME-OUT THREASHOLD:
Check your input range—- - -
IF 0-10, 1-5, 1-18, 4-20 mA (JUMPER ON “2”)
IF 2-10 (JUMPER ON “3”)
IF 6-9 (JUMPER ON “7.3”)
The threshold voltage is the starting point at which the
shutdown timer begins.
Jumper
(Shown in 2 volt position)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
Jumpers
INPUT RANGES AVAILABLE:
1-18 VDC (Jumpers on: B-G-K)
1-5 VDC (Jumpers on: C-H-L)
2-10 VDC Control (Jumpers on: E-H-L)
6-9 VDC (Jumpers on: D-I-M)
4-20 mA (Jumpers on: C=H=L=O)
3-Wire Resistive (Jumpers on: C-H-L-P)
User Specified (Jumpers on: A-F-J)
- Jumper on “N” for SCR operation only.
- Jumper positions “Q” and “R” are for jumper
storage only and do not affect operation or
calibration.
Fine tune sensor adjustment (ZERO).
NOTE: should be checked after range
change has been made.
ZERO
ADJ
ADJUSTMENTS:
UT2000 Control Board (“EC” Series)
Program Jumper Configurations
NOTE: Removal of Factory Test Jumper
“J1” turns off the Auto-Drain Feature
10-POS
DIP
SWITCH
“AMBER” LOW
DEMAND LED
J2
CTR
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