Geokon BGK-408 User manual

BGK-408
VW Readout Box
Instruction Manual
(Rev E)
China Genkon Instruments Co. Ltd.
www.geokon.cn

BGK-408
VW Readout Box
Instruction Manual
(Rev E)
Copyright ©2009 China Genkon Instruments Co. Ltd.
The installation, maintenance and operation tasks on this instrument should be performed by professional technician.
China Geokon Instruments Co., Ltd. reserves the modification rights for its products. The product information is subject to
change without notice.
The information contained in this document belongs to China Geokon Instruments Co., Ltd. All of the information, data,
designs and drawings in this document are owned by China Geokon Instruments Co., Ltd. No part of this guide may be
reproduced or copied, disclosed to outside directly or indirectly, by any means (including photocopying or any other means),
without the written consent of China Geokon Instruments Co., Ltd.

Manual of BGK-408 2
CONTONT
１.Main Function..............................................................................................................................3
1.1 BGK-408 Front Panel .........................................................................................................3
1.2 Port Introduction.................................................................................................................5
1.2.1 Transducer Port........................................................................................................5
1.2.2 Communication Port ................................................................................................5
1.2.3 Outer Power Port......................................................................................................5
2 Beginning.......................................................................................................................................6
2.1 Getting started.....................................................................................................................6
2.2 Type of Transducers and its Setting ....................................................................................7
2.3 Shortcut Measuring.............................................................................................................8
2.3.1 Routine Manual ―MEAS‖ Mode..............................................................................8
2.3.2AUTO.....................................................................................................................10
2.3.2.1Automatic Measuring of Single Terminal Box....................................................10
2.3.2.2 Multiple Terminal Boxes.....................................................................................12
3 Main Menu...................................................................................................................................14
3.1 Interface of Main Menu ....................................................................................................14
3.2 Menu Selection .................................................................................................................15
3.2.1 ―Storage Address‖ ..................................................................................................15
3.2.2 ―Storage Page‖ .......................................................................................................16
3.2.3 ―Data Clean-up‖.....................................................................................................16
3.2.4 ―Data Renewing‖ ...................................................................................................16
3.2.5 ―Timing Turnoff‖ ...................................................................................................17
3.2.6 ―Data View‖ ...........................................................................................................18
3.2.7 ―Date/Time Setting‖...............................................................................................19
3.2.8 ―Display Model‖ ....................................................................................................21
3.2.9 ―Exit‖ .....................................................................................................................22
4 Maintenance.................................................................................................................................22
4.1 Daily Maintenance............................................................................................................22
4.2 Calibration.........................................................................................................................23
4.3 Trouble Shooting...............................................................................................................23
4.4 Limits of Liability and Guarantee.....................................................................................24
5 BGK-408 Specification................................................................................................................26
AppendixA BGK-408 Use Method of Communication and Setting Software............................27
A.1 Read the Data Stored in Readout Box......................................................................................27
A.2 the channel configuration method of BGK-408 and BGK-AC networking.............................29
A.3 BGK-408 and BGK-AC measuring method in networking.....................................................34

Manual of BGK-408 3
１.Main Function
BGK-408VW Readout Box is manufactured by China Genkon Instruments for matching
the VW transducers. The main characters are:
1) The complete sealed and portable construction, the pellicle and water-proof panel and a
big and apheliotropic screen LCD can make the readout box work under any weather
condition;
2) By alternative operation with hand or machine, the user can set the original parameters
and work condition at will according to the suggestion show in the menu;
3) Such shortcut keys as 【 】、【MEAS】、【POS】、【AUTO】can improve the working
efficiency;
4) The inner data storage with big capability can store the measurements while displaying
the data, and can store 1920 pieces of instruments at most;
5) By the computer and the relative communicate software, the RS-232C communication
port can realize the readout box controlling，real time measuring, parameter updating,
data communicating and some other functions；
6) By RS-485 communication port，the readout box can be connected to BGK-AC
Terminal Box without any sew；
7) The referential information about the outer power, inner battery and the voltage are
shown completely and exactly；
8) High accuracy and stability；
9) Turn off automatically if no operation in a long time；
10) The big capability Li-battery can ensure the long and steady work。
1.1 BGK-408 Front Panel
BGK-408 VW Readout Box uses pellicle keys, there are 【ON】、【 OFF】、 【】、
【MEAS】、【POS】、【AUTO】、【MENU】、【▲】、【▼】、【SET】， among which【 】、【MEAS】、
【POS】、【AUTO】are shortcut keys，and【MENU】can realize the parameters setting, and【▲】、
【▼】、【SET】are used as key combination. BGK-408 Front Panel is composed of the following
parts; please refer to P-1:

Manual of BGK-408 4
a) 128×64 lattice LCD, which can show four rows of characters；
b) ―TRANSDUCER‖ is for connection of the transducers；
c) ―CHARGER‖ is the charger jack for the inner battery or outer power supply；
d) ―RS-232/485‖ is for connection of the communication wire and terminal box or PC；
e) 【ON】【 OFF】is for turning on and off the power；
f) 【SET】is for setting the parameter；
g) 【AUTO】is for the automatic measuring and storing data after connecting BGK－AC；
h) 【POS】is for the range setting of frequency sweep of different sensors;
i) 【MEAS】is used in normal condition and when data storing is needed；
j) 【 】press once to turn on the apheliotropic and another to turn off。
k) 【▲ ▼】is for address storage and the combination use when setting the mode or the
menu；
l) 【 】(Enter) is for data storage confirmation under measuring status and is for optional
item switch or confirmation under the setting status.
P-1 BGK-408 Operation Panel
Once turning on, press any key the inner buzzer will sound, and meanwhile the information
will show on LCD to respond the operation.
Note: Though the operation panel of BGK－408 uses pellicle key, do not use nail or other

Manual of BGK-408 5
hard things to press to avoid the keys distortion or uselessness.
1.2 Port Introduction
1.2.1 Transducer Port
BGK-408VW Readout Box is equipped with special cable, one end is a ten-core aero-jack
connected to ―TRANSDUCER‖ and the other end is clips with five colors of leads，among
which the ―red‖ and ―black‖ leads are connected to the VW signal output end, and ―green‖ and
―white‖ leads are connected to the temperature signal output end of instruments; And all the
leads above are not in polarity division, thus the connection position can be changed. That
is ,‖red‖and ―black‖can be changed and ―green‖and ―white‖can be changed. The yellow lead
clip is used to connect with the shielding line of instruments.
When use China Genkon Instruments, all the clips are connected to the wire with the same color.
1.2.2 Communication Port
BGK-408VW Readout Box has RS-232C and RS485 port, and there is an obvious sign
―RS-232/485‖ in the corresponding position on the panel.
By the special cable, can realize：
a.) RS－232C connected to PC or nine-core of RS232；
b.) RS－485 connected to BGK-AC Terminal Box。
1.2.3 Outer Power Port
BGK-408VW Readout Box has a port for outer power, and there is an obvious sign
―CHARGER‖ in the corresponding position on the panel.
When outer power supplies, there will be a signal of ― ‖ shown on LCD, and the inner spare
battery supplies, there will be a signal of ― ‖ shown on LCD, while the voltage is not enough,
there will be ― ‖ . When the outer power is connected, it will also charge the inner spare battery
until to the upper limit of the voltage and turn off automatically to protect the battery from
over-charge.
There will be no difference for the measuring results no matter use the outer power or the
battery to supply BGK-408.

Manual of BGK-408 6
2 Beginning
2.1 Getting started
Press ―ON‖ and BGK-408VW Readout Box will start, there will show the following interface
on LCD, and if it has been connected to the instruments before started, it will be in measuring
function directly.
Geokon
VW Readout box
2004-03-21
15：34：52
P-2 Interface after getting started
Once BGK-408 is getting started, the inner system will do self-checking automatically,
and the items include storage、battery voltage and real time clock. The sign“ ” on the upper
right corner shows in the model of battery supply (“”means battery under
voltage), The sign“ ” shows the readout box in charging status and outer
power is connected.
When the battery is not enough and no outer power, there will show the following interface
as P-3, and the readout box will turn off automatically in 15m, now it should be recharged in time.
P-3 Interface of lacking battery voltage
The readout box will turn off automatically in the following conditions：
a) Under power supply condition, if there is no key operation over 15m, it will turn off
automatically;
b) Under battery supply condition, if the battery voltage is not enough, even if there is
Please charge the battery
Turn off in 15minutes

Manual of BGK-408 7
key operation, it will turn of automatically in 15m.
In normal condition, the self-checking will be finished in 1s, and after this BGK－408 will
self-identify automatically if there is any transducer connected. If there is no transducer or connect
transducers after self-checking, the panel will keep on the interface after getting started until
switch to other interface or turn off by hand. And if the readout box connects transducers before
getting started, it will switch in ―measuring‖ model directly after self-checking and show the
current modulus and temperature.
00－01－01 B
Modu.：
2583.8 F
Temp.：
23.6℃
P-4 Interface of measuring mode after self-testing
If transducer has been connected, after self-checking the measuring mode will be the same as
the last time, which is suit for most of Geokon transducers. If there is other type of transducers,
the mode needs to be resettled after getting started. And if there is no instrument, it is need to press
―MEAS‖ to enter in measuring status. .
2.2 Type of Transducers and its Setting
In order to fit different types of transducers, there are six kinds of POS models in BGK－408,
which can be set anytime in normal measuring condition.
After getting started, no matter in which condition, the corresponding POS models should be
chosen for certain instruments. See Table 1 to determine the best mode for China Genkon
Instruments.
Table 1 - POS MODEL options (A-F)
POS model
Use with Geokon
Model No.
Calculation
Units
Frequency
Sweep (Hz)
A
all
f210-3
F or
450-5000
B-POS MODE
F-Module,
HZ-Frequency
Head site of storage
P. No.―Box.No.―Point. No.
℃- T e m p e r a t u r e
Ω-Resistance

Manual of BGK-408 8
B
4300BX,4400,
4500,4600,4700,
4800,4900/11
Digits
1200-3500
C
4000/4200
400-1200
D
4100
1800-3500
E
4300EX
2500-6000
F
others
2500-4000
Operation method: Press ―MEAS‖to enter in measuring status, there appears the following
interface:
P-5 Interface of regular measuring mode
Press ―POS‖(Incentive mode) to choose the right frequency sweep mode, the model includes
A-B-C-D-E-F and the displayed readings are for the instruments.
If it is need to store the current frequency sweep mode, just press ―SET‖, and then press
―MEAS‖ to the measuring mode. Thus even turn off the readout box, it will still measure in this
mode after turning on again.
Note: If the chosen POS MODEL is not equipped with the instruments, the readings might be
not stable or no readings, even wrong.
2.3 Shortcut Measuring
2.3.1 Routine Manual ―MEAS‖ Mode
Press “MEAS” in any condition can entry measuring mode.
Routine measuring means in normal condition, operate BGK－408 manually and store data
in turn. Take BGK－4000 for example, the operation steps are:
1) Press ―MEAS‖ after getting started, and refer P-6:
00－01－01 B
Modu.：
2583.8 F
Temp.：
23.6℃

Manual of BGK-408 9
Module：00－01－01 B
________ F
Temperature：
________℃
P-6 Interface of regular measuring mode
2) Press ―POS‖ to choose proper POS MODEL according to the instruments, for instance,
chooses ―C‖. Press down this button, the POS models can be changed in A-F.
3) Connect transducer and the readout box, please refer to P-7:
Module：00－01－01 C
924.2 F
Temperature：
24.3℃
P-7 Interface of regular measuring
4) Store current readings (if need to store manually, please press ― ‖) in 00－01－01,
and at this moment, there will show the following information as
P-8－Indicating interface of data storage
5) If the readout box doesn’t connect to another instruments, there will show information
as P-9, and pay attention to the storage number has been 00－01－02；
Module：00－01－02 C
________ F
Temperature：
________℃
P-9－Interface after automatic logging
6) Press “▲” 或“▼” to change the storage address; and if it only needs to change the
channel number, just press “▲” 或“▼” once.And if it needs to change the channel
number rapidly, just press“▲”或“▼”continuously, and the channel and box number
will increase and reduce rapidly in order, stop pressing until meet the requirements. If it
needs to change the storage interface, please refer to the Section of Main Menu.
Data has been stored,
Please connect next instruments!