Switching Outputs; Analogue Outputs - Bühler technologies BCM-WS, BCM-WD Guía Rápida

BCM
h___i
Configuration
Equipment configuration
____
Display ____
Measurement display
Humidity hud
Humidity main menu
Temperature
tEMP
Temperature main menu
b. E F
Basic EF
Basic Adv. Functions
Diagnostic DiA
Diagnostics menu
Exit
E
Exit menu level
The individual menu items will not be shown if the option
does not apply. Example: With a=0 the menu items for config-
uring the analogue output does not apply. You can then skip
the description for this item.
The structure of the main menus Humidity (hud) and Temper-
ature (tEMP) is identical. Here you can configure the switching
outputs or the analogue outputs (if applicable).
The basic device settings can be changed. General settings can
be configured under Basic Settings Advanced Functions (b.EF).
These settings should be configured first, as they affect the
displays and settings for the individual menus. These settings
are e.g. the units used and allocating switching outputs for li-
quid level and temperature measurement. The allocation of
the analogue outputs cannot be changed.
The Diagnostic (dia) menu further contains diagnostics op-
tions.
For the detailed illustration of the entire menu structure
please refer to the original operating instructions at the end
of this chapter.
5.2 BCM-WS
This explanation of the operation applies to the sensor ver-
sions without display.
BX150101 ◦ 03/2018
out1
Out 1
Settings menu OUT1
Out x out_
If applicable
Settings menu OUT1
Analog Out 1
An 1
If applicable
Settings menu Analog 1
Exit E
Exit menu level
out_
Out X
If applicable
Settings menu OUTX
out_
Out X
If applicable
Settings menu OUTX
An 2
Analog Out 2
If applicable
Settings menu Analog 2
E
Exit
Exit menu level

5.2.1 Switching outputs

The sensor has one switching output assigned to humidity.
The threshold is preset to 80 %. The switching function is a NO
contact. This switching output can be configured ex works or
via the digital interface.

5.2.2 Analogue outputs

The sensor version features up to two 4-20 mA analogue out-
puts. The analogue outputs are available for the relative hu-
midity and temperature. The scale is preset and can be factory
configured or via the digital interface. By default the analogue
output shows the relative humidity as 0 % to 100 %. The ana-
logue output shows the temperature from -20 °C to 120 °C.
6 Maintenance
Always observe the applicable safety- and operating regula-
tions when performing any type of maintenance. Please refer
to the original operator's manual on the included CD or online
at www.buehler-technologies.com for maintenance informa-
tion.
7 Service and Repair
Please refer to the original operator's manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
7.1 Troubleshooting
Problem / Mal- Possible cause
function
No display • No supply
voltage
Error messages on the display:
Alternating between Err and Exxx: e.g.
Error • Ambient temper-
001 ature too low
Error • Ambient temper-
002 ature too high
Error • Pt100 defective
004 (short-circuit)
Error • Pt100 defective
008 (cable break)
Error • Sensor defective
032 (supply line
open)
• Second plug has
no supply
Error
voltage
1024
• Internal error
Action
• Check cable and
replace, if neces-
sary
⇔
• Maintain limits
• Maintain limits
• Send device in for
repair
• Send device in for
repair
• Send device in for
repair
• Check the supply
voltage for the
second plug.
• Be sure to switch
on or plug in the
power supply for
the second plug
before or shortly
after the first.
• Please contact
customer service
Bühler Technologies GmbH 11