BRONKHORST®
9.17.061
EL-FLOW
Base
Series Mass Flow Controllers
Page 31
4
Advanced Operation
4.1 Reading and Changing Instrument Parameters
4.1.1 Introduction
!
All parameters described in this chapter have influence on the behaviour of the mass-flow meter. Please
be aware that wrong settings can disorder the output and control response.
To avoid un careless changes of these parameters, these parameters are locked. To un-lock these
parameters use set parameter “Init Reset” to “UN
-LOCK
ED”
Initreset
Type
Access
Range
FlowDDE
FlowBus
ModBus
Unsigned char
RW
82/64
7
0/10
0x000A/11
The Initreset parameter is used to ‘Un-Lock’ advanced parameters for writing. This parameter knows the
following values:
Value Mode
Instrument action
82
LOCKED
Advanced parameters are
read-only
64
UN_LOCKED
Advanced parameters are
write- en readable.
This parameter is always set to “LOCKED” at power-up.
4.1.2 Identification
Serial number
Type
Access
Range
FlowDDE
FlowBus
ModBus
Unsigned char[20]
R
-
92
113/3
0xF118..0xF11F/61721..61728
This parameter consists of a maximum 20-byte string with instrument serial number for identification.
Example: “M0202123A”
BHT Model number
Type
Access
Range
FlowDDE
FlowBus
ModBus PDU
Unsigned char[14]
R
-
91
113/2
0xF111..0xF117/61713..61719
Bronkhorst® instrument model number information string.
Firmware version
Type
Access
Range
FlowDDE
FlowBus
ModBus PDU
Unsigned char[5]
R
-
105
113/5
0xF128..0XF12A/61737..61739
Revision number of firmware. Eg. “V1.12”
Usertag
Type
Access
Range
FlowDDE
FlowBus
ModBus PDU
Unsigned char[13]
RW
-
115
113/6
0xF130..0xF136/61745..61751
User definable alias string. Maximum 13 characters allow the user to give the instrument his own tag
name.
