ES-7657 Rev.6
27PM
Head-mounted Two-wire Signal Conditioners
27-UNIT
POTENTIOMETER TRANSMITTER
(PC programmable)
Functions & Features
• I/O range programming via PC Configurator
• Self diagnostics
• Low temperature drift
MODEL: 27PM–0[1]
ORDERING INFORMATION
• Code number: 27PM-0[1]
Specify a code from below for [1].
(e.g. 27PM-0/M)
SAFETY APPROVAL
0
: None
[1] OPTIONS
Function Monitor LED
Blank
: Without
/M
: With
RELATED PRODUCTS
• USB interface Bell202 modem (model: COP-HU)
Usable in ‘non-hazardous’ area only.
• PC configurator software (model: 27MCFG)
Downloadable at our web site.
GENERAL SPECIFICATIONS
Construction
: Sensor head-mounting
Connection
: M3 screw terminals (torque 0.5 N·m)
Screw terminal
: Nickel-plated brass
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output
Function monitor LED
: Input status and error status are displayed by blinking mode.
User-configurable items
: PC and the transmitter are connected with the COP-HU.
· Input range
· Burnout
· Output limits (Upper / Lower)
· Damping time
· Linearization
· Output calibration
· Loop test output
INPUT SPECIFICATIONS
■ Potentiometer
: 100 Ω – 10 kΩ
Minimum span:
10 % of total resistance
Excitation:
2.5 V DC (43.2 kΩ connected in serial)
OUTPUT SPECIFICATIONS
Output range:
4 – 20 mA DC
Operational range:
3.75 – 23 mA
Load resistance vs. supply voltage:
Load Resistance (Ω) = (Supply Voltage (V) – 9 (V)) ÷ 0.023 (A) (including leadwire resistance)
Burnout:
3.75 – 3.8 mA or 21.5 – 23 mA
(factory set to 23 mA)
Upper output limit proportional to the input:
20 – 21.5 mA (factory set to 21.5 mA)
Lower output limit proportional to the input:
3.8 – 4 mA (factory set to 3.8 mA)
Update time:
440 msec.
INSTALLATION
Supply voltage
•
DC
: 9 – 35 V DC
Operating temperature:
-40 to +85°C (-40 to +185°F)
Operating humidity
: 0 to 95 %RH (non-condensing)
Mounting:
Head-mounting (DIN type B head)
Weight
: 50 g (1.76 oz)
PERFORMANCE in percentage of span
Accuracy
:
0.05 % × 100 % of full scale / Input range (%)
Temp. coefficient:
0.0075 %/°C (0.004 %/°F)
Response time
: ≤ 2 sec. (0 – 90 %)
with damping time set to 0
Burnout response time:
≤ 2 sec.
Supply voltage effect
: ±0.01 % of span/V
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1500 V AC @1 minute (input to output)
STANDARDS & APPROVALS
EU conformity
:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
FUNCTION MONITOR LED (option /M)
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
MOUNTING REQUIREMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM