INOR IsoPAQ-11L, IsoPAQ-12L Operating Manual

USER INSTRUCTIONS English

Loop Powered Isolator

www.inor.com

Read these instructions before
using the product and
retain for future information.

1. Before Startup

The isolator should only be installed and put into

The isolator should only be installed and put into
operation by qualified staff. The staff must have

operation by qualified staff. The staff must have
studied the warnings in these operating instructions

studied the warnings in these operating instructions
thoroughly.

thoroughly.

The isolator may not be put into operation if the

The isolator may not be put into operation if the
housing is open.

housing is open.

In applications with high operating voltages

In applications with high operating voltages
sufficient distance and isolation as well as shock

sufficient distance and isolation as well as shock
protection must be ensured.

protection must be ensured.

Safe and trouble-free operation of this device can

Safe and trouble-free operation of this device can
only be guaranteed if transport, storage and

only be guaranteed if transport, storage and
installation are carried out correctly and operation

installation are carried out correctly and operation
an maintenance are carried out with care.

an maintenance are carried out with care.

Appropriate safety measures against electrostatic

Appropriate safety measures against electrostatic
discharge (ESD) should be taken during connection and

discharge (ESD) should be taken during connection and
assembly on the isolator.

assembly on the isolator.

2. Short description 2. Short description

The loop powered isolator is used for electrical isolation and

The loop powered isolator is used for electrical isolation and
processing of 0(4) - 20 mA standard signals.

processing of 0(4) - 20 mA standard signals.

The galvanic isolation guarantees reliable decoupling of the sensor

The galvanic isolation guarantees reliable decoupling of the sensor
circuit from the processing circuit and prevents linked measurement

circuit from the processing circuit and prevents linked measurement
circuits from influencing each other.

circuits from influencing each other.

3. Functioning 3. Functioning

The input signal is modulated and then electrically decoupled using

The input signal is modulated and then electrically decoupled using
a transformer. The isolated signal is then made available at the

a transformer. The isolated signal is then made available at the
output, demodulated and filtered.

output, demodulated and filtered.

When using loop-powered Isolators, ensure that the current-driving

When using loop-powered Isolators, ensure that the current-driving
voltage of the power source U

voltage of the power source U
current of 20 mA over the isolator with voltage drop of U

current of 20 mA over the isolator with voltage drop of U
and the load Rl

and the load Rl

U

U

≥ UIN = 2 V + 20 mA x R

≥ UIN = 2 V + 20 mA x R

S

S

Optional use:

U

= US - 2 V - 20 mA x R

T

4. Equipment

A screwdriver with a width of 2.5 mm is required connect the wires
to the screw clamp terminals.

5. Mounting, electrical connection

The isolation transmitter is mounted on standard 35 mm DIN rail.

Terminal assignments

Channel 1 Channel 2

1 Input + 3 Input +
2 Input - 4 Input -

5 Output + 7 Output +
6 Output - 8 Output -

6. Order information

Product Input / Output Part No.

IsoPAQ-11L 1-channel, 0(4) - 20 mA 70ISL11001
IsoPAQ-12L 2-channel, 0(4) - 20 mA 70ISL12001

.

.

oad

oad

is sufficient for driving the maximum

is sufficient for driving the maximum

S

S

load

load

drop

drop

= 2 V

= 2 V

7. Technical Data

Input

Input signal 0(4) - 20 mA / max. 30 V
Operating current
Voltage drop
Overload

Output

Output signal 0(4) - 20 mA / max. 28 V
Response time

(10 to 90 % of end value)
Ripple < 20 mV

General data

Transmission error
Load error
Temperature coefficient1)
Test voltage 1.5 kV, 50 Hz Between all circuits
Ambient temperature

EMC2) EN 61326 -1
Construction 12,5 mm (0.5’’) housing, protection type: IP 20
Connection
Weight Approx. 100 g

1) Average T C in specified operating temperature rang e

2) Minor deviations possible during int erference

8. Block diagram

< 20 µA
< 2 V
≤ 100 mA, ≤ 30 V

2 ms @ 250 Ω load / 6 ms 750 Ω load

rms

± 0.1 % of end value
± 0.03 % of measured value / 100 Ω load
± 0.0015 %/K of measured value / 100 Ω loa d

Operation
Transport
and storage

≤ 2.5 mm2, AWG 14

- 20 °C to + 70 °C (-4 to +158 °F)

- 35 °C to + 85 °C (-31 to +185 °F)

9. Dimensions

LIMITED WARRANTY

INOR Process AB, or any other affiliated company within the
Inor Group (hereinafter jointly referred to as ”Inor”), hereby
warrants that the Product will be free from defects in materials
or workmanship for a period of five (5) years from the date of
delivery (”Limited Warranty”). This Limited Warranty is limited
to repair or replacement at Inor’s option and is effective only for
the first end-user of the Product. Upon receipt of a warranty
claim, Inor shall respond within a reasonable time period as to
its decision concerning:

1. Whether Inor acknowledges its responsibility for any
asserted defect in materials or workmanship; and, if so,

2. the appropriate cause of action to be taken (i.e. whether
a defective product should be replaced or repaired by
Inor).

This Limited Warranty applies only if the Product:

1. is installed according to the instructions furnished by
Inor;

2. is connected to a proper power supply;

3. is not misused or abused; and

4. there is no evidence of tampering, mishandling, neglect,
accidental damage, modification or repair without the
approval of Inor or damage done to the Product by
anyone other than Inor.

This Limited Warranty is provided by Inor and contains the only
express warranty provided.

INOR SPECIFICALLY DISCLAIMS ANY EXPRESS WARRANTY NOT
PROVIDED HEREIN AND ANY IMPLIED WARRANTY, GU ARANTEE OR
REPRESENTATION AS TO SUITABILITY FOR ANY PARTICULAR
PURPOSE, PERFORMANCE, QUALITY AND ABSENCE OF ANY
HIDDEN DEFECTS, AND ANY REMEDY FOR BREACH OF CONTRACT,
WHICH BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICATION,
OPERATION OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING,
INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. EXCEPT AS PROVIDED
HEREIN, INOR FURTHER DISCLAIMS ANY RESPONSIBILITY FOR
LOSSES, EXPENSES, INCONVENIENCES, SPECIAL, DIRECT ,
SECONDARY OR CONSEQUENTIAL DAMAGES ARISING FROM
OWNERSHIP OR USE OF THE PRODUCT.

Products that are covered by the Limited Warranty will either
be repaired or replaced at the option of Inor. Customer pays
freight to Inor, and Inor will pay the return freight by post or
other “normal” way of transport. If any other type of return
freight is requested, customer pays the whole return cost.

INOR Process AB

PO Box 9125
200 39 MALMÖ
SWEDEN

Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.inor.com

86BIS00023 2005-05