MODEL: 27PM

27PM SPECIFICATIONS

ES-7657 Rev.5 Page 1/3

https://www.m-system.co.jp/

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

44 (1.73) DIA.

20.7

(.81)

mm (inch)

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 M-System’s 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