PCE Instruments PCE-LOC 10 User manual

© PCE Instruments
PCE-LOC 10 Loop Calibrator
User Manual
User manuals in various languages (français,
italiano, español, português, nederlands, türk, polski,
русский, 中文) can be found by using our
product search on: www.pce-instruments.com
Last change: 23 January 2020
v1.0
English

© PCE Instruments
Contents
1Safety notes........................................................................................... 1
2Specifications........................................................................................2
3Layout and Functions...........................................................................3
3.1 Device layout ................................................................................................................... 3
3.2 LCD layout....................................................................................................................... 4
4Device Maintenance.............................................................................. 4
4.1 General maintenance....................................................................................................... 4
4.2 Battery replacement......................................................................................................... 5
4.3 Fuse replacement ............................................................................................................ 6
5Operating Instructions ......................................................................... 6
5.1 Power on/off..................................................................................................................... 6
5.2 Automatic power-off ......................................................................................................... 7
5.3 Device output................................................................................................................... 7
5.4 Measurement procedure .................................................................................................10
6Performance Index..............................................................................12
7Calibration ........................................................................................... 13
8Warranty...............................................................................................13
9Disposal ...............................................................................................13

© PCE Instruments
1
1 Safety notes
Please read this manual carefully and completely before you use the device for the first time. The
device may only be used by qualified personnel and repaired by PCE Instruments personnel.
Damage or injuries caused by non-observance of the manual are excluded from our liability and
not covered by our warranty.
•The device must only be used as described inthis instruction manual.If used otherwise,
this can cause dangerous situations for the user and damage to the meter.
•The instrument may only be used if the environmental conditions (temperature, relative
humidity, …) are within the ranges stated in the technical specifications. Do not expose
the device to extreme temperatures, direct sunlight, extreme humidity or moisture.
•Do not expose the device to shocks or strong vibrations.
•The case should only be opened by qualified PCE Instruments personnel.
•Never use the instrument when your hands are wet.
•You must not make any technical changes to the device.
•The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner,
no abrasives or solvents.
•The device must only be used with accessories from PCE Instruments or equivalent.
•Before each use, inspect the case for visible damage. If any damage is visible, do not
use the device.
•Do not use the instrument in explosive atmospheres.
•The measurement range as stated in the specifications must not be exceeded under
any circumstances.
•Non-observance of the safety notes can cause damage to the device and injuries to
the user.
We do not assume liability for printing errors or any other mistakes in this manual.
We expressly point to our general guarantee terms which can be found in our general terms of
business.
If you have any questions please contact PCE Instruments. The contact details can be found at
the end of this manual.

© PCE Instruments
2
2 Specifications
Current simulation (active)
(max. burden 1 kOhm)
Area
Resolution
Accuracy
0 ... 22-mA
0.001-mA
± 0.05% of sim. value + 4 µA
Current simulation (passive)
(max. burden 1 kOhm / max. 5 ... 25V DC)
Area
Resolution
Accuracy
0 ... 22-mA
0.001-mA
± 0.05% of sim. value + 4 µA
Voltage transmitter f. current
loop
Area
Resolution
Accuracy
24V DC / 25-mA
± 10%
Voltage measurement
Area
Resolution
Accuracy
-0.2 ... 28V
1 mV
± 0.02% of meas. + 2 mV
Current measurement
Area
Resolution
Accuracy
-1 ... 22-mA
0.001-mA
± 0.02% of meas. + 4 µA
Current measurement
(Loop current with voltage transmitter function)
Area
Resolution
Accuracy
0 ... 22-mA
0.001-mA
± 0.02% of meas. + 4 µA
More specifications
Power supply
2 x 1.5V AA batteries
Max. Tension
30V
Operating conditions
0 ... 50°C / 32 ... 122°F, < 80% RH
Storage conditions
-10 ... 60°C / 14 ... 140°F, < 95% RH
Dimensions
180 x 90 x 47 mm / 7.1 x 3.5 x 1.9 in
Weight
Approx. 500 g / 1.1 lbs

© PCE Instruments
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3 Layout and Functions
3.1 Device layout
1. LCD Display
6. 25% single step/Auto-ramp
2. Power
7. 0%-100% of setting/Auto-ramp start
3. Output/Input toggle
8. Output value set
4. mA% unit select
9. Input digit select
5. Single step/Auto toggle
10. Input/Output terminal
1
2
5
9
3
4
6
7
8
10

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3.2 LCD layout
•OUTPUT - press the output/input button (3) until the OUTPUT symbol appears. The
device is now in an output state.
•INPUT - press the output/input button (3) until the INPUT symbol appears. The device
is now in an input state.
•CAL –The calibration symbol denotes that the device is in a state of calibration.
•0 FS –When the symbols 0 or FS appear during the calibration process, it denotes that
the device is now calibrating the zero point or the full scale point respectively.
•- When the battery symbol appears, it denotes that the battery is almost depleted
and needs replacement.
•▲–this symbol denotes that the output digits need setting.
•mA%/V –These symbols denote the units of both present input and output values.
•ON / OFF –These symbols denote the status of the input/output signals.
•- These symbols denote the high and low-speed of the auto-ramp and auto-
step ramp.
4 Device Maintenance
This section provides some basic maintenance procedures. Repair, calibration, and servicing not
covered in this manual must be performed by qualified personnel. For maintenance procedures
not described in this manual, please contact Support.
4.1 General maintenance
•Periodically wipethe case down with a damp cloth and detergent; do not use abrasives
or solvents.
•Remove the batteries if the device is not to be used for a prolonged period of time.
•Dirt or moisture in the terminals can affect the readings and should be avoided. Clean
the terminals as follows:
oTurn the device off and remove all test leads.
oShake out any dirt, accumulated in the terminals.
oSoak a cotton swab with alcohol and clean each terminal.

© PCE Instruments
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4.2 Battery replacement
This Instrument is powered by two AA batteries (IEC LR6).
Warning
To avoid electrical shock or personal injury:
•Remove all test leads before opening the battery cover.
•Close the battery cover and tighten the screw before using the device again.
Note
•New and old batteries should not be mixed.
•Make sure to match the polarity of the batteries with the polarity on the device.
•Remove the batteries if the device is not to be used for a prolonged period of time.
•Dispose of the old batteries according to local regulations and law.
Replace the batteries as follows (refer to Figure 3.1):
•Remove all test leads before opening the battery cover.
•Remove the device protector.
•Remove the battery cover by unscrewing the screw with a screwdriver.
•Replace with two new batteries;
•Reinstall the battery case, tighten the screws and replace the device protector.
Figure 3.1 Battery replacement

© PCE Instruments
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4.3 Fuse replacement
Warning
To avoid personnel injury or damage to the device, use only the specified fuse (63mA 250V fast-
melt).
Replace the fuse as follows (refer to Figure 3.2):
•Turn the device off and remove all test leads.
•Remove the device protector.
•Remove the back cover by unscrewing the four screws with a screwdriver.
•Replace the blown fuse(s).
•Reinstall the cover.
•Reinstall the device protector.
Figure 3.2 Fuse replacement
5 Operating Instructions
5.1 Power on/off
•Press the power button to turn the device on.
•Press and hold the power button for 1 second to turn the device off.
•After turning the device on, an internal self-diagnosis procedure is carried out before
the display is turned on.
Note
To prevent damage to the device, it is recommended to wait 5 seconds after turning the device
off, before turning it on again.

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5.2 Automatic power-off
As per factory default, the device turns off automatically after 15 minutes of inactivity.
This feature can be adjusted by the user as follows:
•With the device turned off, press the mA%/V and the power button simultaneously to
turn the device on.
•Release the power button as soon as the display shows all of the content.
•The device is now in calibration mode and the symbols AP-XX are shown on the
display.
•Use the ▲ or ▼ buttons to toggle between AP-OFF and AP-ON.
•Press the 100%/START button to store the changes.
•Press the power button to exit.
5.3 Device output
The device produces a DC current from its appropriate output terminal （OUTPUT) set by the
user or it can simulate transmitter output.
Caution
Do not apply voltage to the output terminal during the operation. If any improper voltage is applied
to the output terminal, it will cause damage to the internal circuitry.
Function
Operation
% Operation
Display
Setting Range
DCI 20mA
20 mA  %
00.000 mA
-025.00 mA %
00.000～22.000 mA
-025.00～112.50 mA %
5.3.1 Current output
•Insert one end of the test lead to the + mA –output jack（OUTPUT）of the device and
connect the other end with the input of the device as shown in Figure 5.1.
•Press the output/input toggle button (3) so that the OUTPUT symbol appears on the
display. The device is now in an output state.
•Press the mA%/V unit select button (4) so the device displays mA or mA%; where 0%
is 4mA and 100% is 20mA.
•Use the ◄ or ► buttons to select the output digits.
•Use the ▲ or ▼ buttons to change the value of the set digits. The value can be rounded
or decremented automatically. Press and hold the button for one second to change the
value continuously.

© PCE Instruments
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MAX
30V30V
MAXMAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT+mA-
+
Figure 5.1 Current output
5.3.2 25% step current output
•Connect the test leads to the device as in Figure 5.1.
•Press the output/input toggle button (3) so that the OUTPUT symbol appears on the
display. The device is now in an output state.
•Press the 25%/RAMP button, the or ▲ symbols will be displayed.
•Press the mA%/V unit select button (4) so the device displays mA or mA%.
•Use the ▲ or ▼ buttons to change the output value in 25% increments; where 0% is
4mA and 100% is 20mA.
•Press the 25%/RAMP button again to exit the step current output.
5.3.3 Current Output Set for Zero Point & Full Scale
•Connect the test leads to the device as in Figure 5.1.
•Press the output/input toggle button (3) so that the OUTPUT symbol appears on the
display. The device is now in an output state.
•Press the 100%/START button and the ,▲, 0 and FS symbols will be displayed.
•Use the ▲ or ▼ buttons to change the output value from 100% (20mA) and 0% (4mA).
•Press the 100%/START button again to exit the step current output.

© PCE Instruments
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5.3.4 Auto ramp output
•Connect the test leads to the device as in Figure 5.1.
•Press the output/input toggle button (3) so that the OUTPUT symbol appears on the
display. The device is now in an output state.
•Press the STEP/AUTO button, the OUTPUT, OFF and 4mA symbols will be displayed.
The device is now in ramp mode.
•Press the 25%/RAMP key again to change the type of output slope, which is displayed
at the lower left of the display. The types are displayed as ɅS, , Ʌ F in the correct
order. These symbols indicate low-speed ramps and high-speed ramps, respectively.
The former has a maximum cycle of 60s, the latter has a maximum cycle of 30s, and
the auto-step ramp pauses for 5s at each step.
•When the ON symbol is displayed, press the 100%/START button to start setting the
waveform output.
•Press the 100%/START button again, the output will be paused at the current value
and the OFF symbol will be displayed.
•Press the button again, to continue the stepped output from the paused value.
•When the OFF symbol appears, press any of the buttons ▲, ▼, ◄, ► to return the
output to 0%. Then, the value of 4 mA will be displayed.
5.3.5 Simulating transmitter output (XMT)
•Insert one end of the test lead to the XMT output jack of the device and connect the
other end with the input of the device as shown in Figure 5.2.
•The key-operation is the same as that of the current output.
MAX
30V30V
MAXMAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT+mA-
+
5--25VDC Power
Power
Figure 5.2 XMT output connection
Note
•Range of power supply: 5 to 25VDC
•Connect a 24V DC power supply to the device while operating the current output, to
prolong the working life of the battery.

© PCE Instruments
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5.4 Measurement procedure
Warning
During operation, do not apply more than 30V between any two terminals or between any terminal
and the ground. Any voltage exceeding 30V can not only damage the instrument, but can also
cause personal injury.
Caution
•Do not apply a voltage or current to the input terminals exceeding the measurement
range during operation, as it can cause damage to the device.
•Cut off thepower supply tothe devicebefore connectingany test leads, as it may cause
damage to the device.
Input procedure
Function
Operation
%Operation
Display
Measurement Range
DCI 20 mA
 
DCV 28 V
20 mA

%
00.000 mA
-25.00 mA %
0.000 V
-1.000～22.000 mA
-31.25～112.50 mA %
-0.2000～28.000 V
5.4.1 DC current measurement
•Insert one end of the test lead to the mA jack（INPUT）of the device and connect the
other end with the input of the device as shown in Figure 5.3.
•Press the output/input toggle button (3) so that the INPUT symbol appears on the
display. The device is now in an input state.
•Press the mA%/V unit select button (4) so the device displays mA or mA%; where 0%
is 4mA and 100% is 20mA.
•The device now begins to measure. ON and the measured result are now shown on
the display.
•The measurement refresh rate is twice per second. If the measured result exceeds the
measuring range, OL will be shown on the display.
MAX
30V30V
MAXMAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT+mA-
+
Figure 5.3 DC current measurement input

© PCE Instruments
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5.4.2 DC voltage measurement
•Insert one end of the test lead to the V jack（INPUT）of the device and connect the
other end with the input of the device as shown in Figure 5.4.
•Press the output/input toggle button (3) so that the INPUT symbol appears on the
display. The device is now in an input state.
•Press the mA%/V unit select button (4) so the device displays V.
•The device now begins to measure. ON and the measured result are now shown on
the display.
•The measurement refresh rate is twice per second. If the measured result exceeds the
measuring range, OL will be shown on the display.
MAX
30V30V
MAXMAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT+mA-
M
+
Figure 5.4 DC voltage measurement input

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5.4.3 24V power supply connection for measuring loop current
•Insert the test leads into the V and mA input jacks（INPUT）of the device as shown in
Figure 5.5.
•The key-operation is the same as that of the DC current measurement.
MAX
30V30V
MAXMAX
30V
INPUT
OUTPUT
COM
mA
V
+LOOP
XMT+mA-
+Transmitter
Figure 5.5 24V power supply connection
6 Performance Index
Output Performance Index (applicable to temperature range from 18℃to 28℃, within one year
after calibration)
Output
Range
Output
Range
Resolution
Accuracy
Remark
DCA
20mA
0.000～
22.000mA
0.001mA
±0.05% set
value
±4uA
Max. load
1KΩat 20mA.
Simu-transmitter
(absorption current)
-20mA
0.000～-
22.000mA
0.001mA
±0.05% set
value
±4uA
Max. load
1KΩat 20mA.
Note: power
supply range:
5～25VDC
Loop Power Supply
24V
10%
Max. output
current up to
25mA.
Input Performance Index (applicable to temperature range from 18℃to 28℃, within one year
after calibration)
Input
Range
Output
Range
Resolution
Accuracy
Remark
Voltage
28V
-0.200～
28.000V
1mV
±0.02%
reading±2mV
Input resistance
about 1MΩ
Current
20mA
-1.000～
22.000mA
0.001mA
±0.02%
reading±4uA
resistance about
20Ω
Loop
Current
20mA
0.000～
22.000mA
0.001mA
±0.02%
reading±4uA
providing 24V loop
power

© PCE Instruments
13
7 Calibration
Each PCE-LOC 10 is delivered factory calibrated. To have the device recalibrated, pleasecontact
PCE Deutschland GmbH.
Unintentional changes in the internal calibration menu can cause problems, e.g. inaccuracies.
8 Warranty
You can read our warranty terms in our General Business Terms which you can find here:
https://www.pce-instruments.com/english/terms.
9 Disposal
For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament
applies. Due to the contained pollutants, batteries must not be disposed of as household waste.
They must be given to collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use
them or give them to a recycling company which disposes of the devices in line with law.
For countries outside the EU, batteries and devices should be disposed of in accordance with
your local waste regulations.
If you have any questions, please contact PCE Instruments.

© PCE Instruments
14
PCE Instruments contact information
Germany France Spain
PCE Deutschland GmbH PCE Instruments France EURL PCE Ibérica S.L.
Im Langel 4 23, rue de Strasbourg Calle Mayor, 53
D-59872 Meschede 67250 Soultz-Sous-Forets 02500 Tobarra (Albacete)
Deutschland France España
Tel.: [phone] Téléphone: [phone] Tel. : [phone]
Fax: [phone] Numéro de fax: [phone] Fax: [phone]
[email protected] [email protected] [email protected]
www.pce-instruments.com/deutsch www.pce-instruments.com/french www.pce-instruments.com/espanol
Germany United Kingdom Italy
PCE Produktions- und PCE Instruments UK Ltd PCE Italia s.r.l.
Entwicklungsgesellschaft mbH Unit 11 Southpoint Business Park Via Pesciatina 878 / B-Interno 6
Im Langel 26 Ensign Way, Southampton 55010 Loc. Gragnano
D-59872 Meschede Hampshire Capannori (Lucca)
Deutschland United Kingdom, SO31 4RF Italia
Tel.: [phone] Tel: [phone] Telefono: [phone]
Fax: [phone] 9971 Fax: [phone] Fax: [phone]
[email protected] [email protected] [email protected]
www.pce-instruments.com/deutsch www.pce-instruments.com/english www.pce-instruments.com/italiano
The Netherlands China Hong Kong
PCE Brookhuis B.V. PCE (Beijing) Technology Co., Limited PCE Instruments HK Ltd.
Institutenweg 15 1519 Room, 6 Building Unit J, 21/F., COS Centre
7521 PH Enschede Zhong Ang Times Plaza 56 Tsun Yip Street
Nederland No. 9 Mentougou Road, Tou Gou District Kwun Tong
Telefoon: [phone] 102300 Beijing, China Kowloon, Hong Kong
[email protected] Tel: [phone] Tel: [phone]
www.pce-instruments.com/dutch [email protected] [email protected]
www.pce-instruments.cn www.pce-instruments.cn
United States of America Turkey
PCE Americas Inc. PCE Teknik Cihazları Ltd.Şti.
711 Commerce Way suite 8 Halkalı Merkez Mah.
Jupiter / Palm Beach Pehlivan Sok. No.6/C
33458 FL 34303 Küçükçekmece - İstanbul
USA Türkiye
Tel: [phone] Tel: [phone]
Fax: [phone] Faks: 0212 705 53 93
[email protected] [email protected]
www.pce-instruments.com/us www.pce-instruments.com/turkish