Reads and simulates dp-transmitters in percent flow
Fixed Calibration currents
Auto-stepping for handsfree calibration
Auto-ramp cycling for endurance tests
Fixed currents for valve stroking
UM831011 can power (24VDC) and read 2-wire transmitters to perform field calibration. Output currents are adjustable with a 10 microamp resolution in both source and transmitter simulation mode.
FIXED STEPS The calibrator can source or simulate fixed calibration currents to test or calibrate receivers and to stroke valves. Different current levels are obtained from a menu.
4-20mA lin
4
-
8
-
12
-
16
-
20mA
0-20mA lin
0
-
5
-
10
-
15
-
20mA
4-20mA sq.rt (flow)
4
-
5
-
8
-
13
-
20mA
0-20mA sq.rt (flow)
0
-
1.25
-
5
-
11.25
-
20mA
4-20mA valve
3.8
-
4
-
4.2
-
12
-
19
-
20
-
21mA
Output currents can be changed manually or automatically. Time between steps is 10 seconds in the auto-stepping mode.
In the valve series, auto-stepping will be
3.8
-
4
-
4.2
or
19
-
20
-
21mA
RAMPING The calibrator can source or simulate with high resolution a continuous up/down cycling between 4 and 20mA or 0 and 20mA.
The travel time between limits is 60 seconds.
READING IN PERCENT The calibrator can display readings in percent of a 4-20mA or 0-20mA span.
Unit also reads or simulates dP-transmitters directly in percent of flow.
SPECIFICATIONS
Output range
0-21.00 mA
Input range
0-21.00 mA
Accuracy
0.05% of range
Resolution
10 microamps
Temperature effect
0.003% °/C, 0.0015% °/F
Internal loop power
24 VDC stabilized
External loop power
56 VDC max.
Measurement input
12 Ohms including fuse
Drive capability
900 Ohms
Operating temp.
-10°C to +50°C, 14°F to 122°F
Battery life
Sources 12 mA 13 hours
Measures 64 hours
Batteries
1.5V 4 x R6, AA (Penlite)
Loop mismatch
Flashes "LOOP"
Low battery
Flashes "LOBAT"
Overrange
Flashes "EEEE"
Reversed polarity
Flashes "POL"
Adapter line/6 VDC
P/N 13700 230V/50Hz
P/N 13602 70V/60Hz
Housing
High impact ABS
Size
3" x 5" x 0.83"
77 x 124 x 21mm
Weight
285 grams/9 oz Includingbatteries
CAT NO.
MODEL
DEscRIPTION
AVAIL
PRICE
UM831011
UPS-II
SMART LOOP CALIBRATOR FOR MILLIAMPS
Yes
872,100
UM831012
UPS-iS
INTRISICALLY SAFE LOOP CALIBRATOR
Yes
1,643,220
UM831013
191-A003
OPTIONAL 70V/60Hz POWER SUPPLY FOR UPS-II 13602 (P/N: 191-A003) FOR Smart Loop Calibrators
Yes
82,620
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