ES-1864 Rev.10
18JR
Rack-mounted DCS Signal Conditioners 18-RACK
RTD CONVERTER
(field-programmable)
Functions & Features
• Accepting direct input from an RTD and providing two standard process signals
• Micro-processor based
• Field-programmable temperature range
• Linearization
• Burnout protection
• Loop testing via hand-held programmer PU-2x
• Second channel output available at the front terminals and at the Standard Rack connector
Typical Applications
• Ideal for quick spare part
MODEL: 18JR–[1]66–R[2]
ORDERING INFORMATION
• Code number: 18JR-[1]66-R[2]
Specify a code from below for each of [1] and [2].
(e.g. 18JR-166-R/BL)
• Temperature range (e.g. 0 – 500°C)
[1] INPUT RTD (2- or 3-wire)
1
: JPt 100 (JIS'89)
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 30°C, 54°F)
3
: Pt 100 (JIS'89)
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 30°C, 54°F)
4
: Pt 100 (JIS'97, IEC)
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 30°C, 54°F)
5
: Pt 50 Ω (JIS'81)
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 60°C, 108°F)
6
: Ni 508.4 Ω
(Usable range: -50 to +200°C, -58 to +392°F; min.span: 20°C, 36°F)
0
: Specify
Note: Consult us for 2-wire RTD
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.)
[2] OPTIONS
Burnout
blank
: Upscale burnout
/BL
: Downscale burnout
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)
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
Overrange output
: Approx. -10 to +120 % at 1 – 5 V
Linearization
: Standard
Adjustments
: Programming Unit (model: PU-2x); RTD type (between Pt 100 and JPt 100 only), temp. range, zero and span, simulating output, etc.
(Refer to the users manual of JXCON for the adjustments configurable with JXCON.)
INPUT SPECIFICATIONS
Maximum leadwire resistance
: 20 Ω per wire (3-wire)
Sensing current
: 2 mA
If not specified, the input range is shown below.
1: JPt 100 (JIS '89) 0 – 100°C
3: Pt 100 (JIS '89) 0 – 100°C
4: Pt 100 (JIS '97, IEC) 0 – 100°C
5: Pt 50 Ω (JIS '81) 0 – 200°C
6: Ni 508.4 Ω 0 – 100°C
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 18BXx or 18KBXx
Weight
: 150 g (0.33 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 % or ±0.1°C (±0.18°F), whichever is greater
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F)
Response time
: ≤ 0.5 sec. (0 – 90 %)
Burnout response
: ≤ 10 sec.
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1500 V AC @ 1 minute
(input to output 1 or output 2 or power)
500 V AC @ 1 minute
(output 1 to output 2 to power)
1500 V AC @ 1 minute
(input or output or power to ground)
EXTERNAL DIMENSIONS unit: mm [inch]
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM