
Pressotronik PT77
5.5 Menu overview
The menu structure is based on the VDMA standard sheet
24574-1. The menu structure is hierarchic. The top menu level
contains the main menu items, e.g. Pres, b.EF,
diA,
E. Each
main menu has additional submenu items.
The menu items may vary depending on the device configura-
tion. Not all menu items described below will necessarily ap-
ply to your device. Press the
key in display mode to open
the configuration. A 4-digit code will appear, e.g.
With the 4 digits tsav meaning:
t: Model
s: Number of switch-
ing outputs
a: Number of ana-
logue outputs
v: Device installation
type
P = pressure measure-
ment
2, 4 or 6
0 for 1
i = no differentiation
Configuration
Equipment configuration
P__i
____
PrES
Display
Measurement display
Pressotronik
Pressure main menu
out1
Settings menu OUT1
Out 1
out_
Settings menu OUTx
Out x
An 1
Settings menu Analog 1
Analog Out 1
E
Exit menu level
Exit
b.EF
Basic Adv. Functions
Basic EF
If applicable
If applicable
DiA
Diagnostics menu
Diagnostic
E
Exit menu level
Exit
____
____
Toggle display
Toggle
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 Pressotronik (Pres) main menu is used to configure the
settings for 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.
The Diagnostic (dia) menu further contains diagnostics op-
tions.
You will find the detailed illustration of the entire menu
structure at the end of these instructions.
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 /
Malfunction
Possible cause
Action
No display
• No supply
voltage
• Check cable and
replace, if neces-
sary
Error messages on the display:
Alternating between Err and Exxx: e.g.
⇔
Error
001
• Ambient temper-
ature too low
• Maintain limits
Error
002
• Ambient temper-
ature too high
• Maintain limits
Error
064
• Cable brake or
defective trans-
mitter
• Replace transmit-
ter and/or cable
Error
128
• Transmitter de-
fective
• Replace transmit-
ter
• Measuring range
exceeded
• Check the system
and transmitter,
maintain the max.
pressure
Error
1024
• Second plug has
no supply
voltage
• 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.
• Internal error
• Please contact
customer service
11
Bühler Technologies GmbH
BX130003 ◦ 02/2021