ES-0465 Rev.3
18KJM
Rack-mounted DCS Signal Conditioners 18K-RACK
POTENTIOMETER CONVERTER
(field-programmable)
Functions & Features
• Segment linearization characteristics are freely configurable via programming unit
• Module can be retracted without removing wiring for an insulation test
• Optional power switch
MODEL: 18KJM–166–R[1]
ORDERING INFORMATION
• Code number: 18KJM-166-R[1]
Specify a code from below for [1].
(e.g. 18KJM-166-R/S)
• Linearization data (max. 16 points)
Use Ordering Information Sheet (No. ESU-1669) to specify linearization data when the I/O signals are non-linear.
INPUT POTENTIOMETER
1
: Total resistance 100 Ω – 10 kΩ
OUTPUT 1
Voltage
6
: 1 – 5 V DC (Load resistance 2000 Ω min.)
OUTPUT 2
Voltage
6
: 1 – 5 V DC (Load resistance 2000 Ω min.)
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
[1] OPTIONS
Power Switch
blank
: None
/S
: With power switch
RELATED PRODUCTS
• Programming Unit (model: PU-2x)
• PC configurator software (model: JXCON)
Downloadable at our web site.
A dedicated cable is required to connect the module to the PC. Please refer to the internet software download site or the users manual for the PC configurator for applicable cable types.
GENERAL SPECIFICATIONS
Construction
: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided
Connection
Input
: M3.5 screw terminals (torque 0.8 N·m)
and connector
Output 1
: Connector
Output 2
: M3.5 screw terminals (torque 0.8 N·m)
and connector
Power input
: Supplied from connector
Screw terminal
: Nickel-plated steel
Isolation
: Input to output 1 to output 2 to power
Linearization
: 16 points max. within the range of -15.00 – +115.00 % input or output; represented as percentage of full-scale
Adjustments
: Programming Unit (model: PU-2x); linearization data (Unused resistance of the potentiometer's total resistance can be programmed with the linearization table.), zero and span, simulating output, etc.
(Refer to the users manual of JXCON for the adjustments configurable with JXCON.)
INPUT SPECIFICATIONS
Minimum span
: 25 % of total resistance (set with the Programming Unit [model: PU-2x] or PC configurator software [model: JXCON])
Excitation
: 0.25 V DC
INSTALLATION
Current consumption
: Approx. 60 mA
Operating temperature
: -5 to +55°C (23 to 131°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Standard Rack 18KBXx
Weight
: 150 g (0.33 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 % with segment gain ≤ 1 [±0.1 % × gain] with segment gain > 1
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Response time
: ≤ 0.5 sec. (0 – 90 %)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 500 V AC @ 1 minute (input to output 1 to output 2 to power to ground)
EXTERNAL VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM