KYOWA MRS-100 Series, Инструкция по эксплуатации

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14
j) "BAL" switch, "BAL" LED
The "BAL" switch is for Balance adjustment and is available in Command Mode.

If using the MRS-104A-S (4ch-Strain Transmitter), MRS-101A-S (1ch-Strain Transmitter) or MRS-101A-SE
(1ch-Strain Transmitter (EXT Antenna))
Pressing the switch negates the transmitter’s bridge unbalance value and performs Balance adjustment. The
specification for the Balance Adjustment Range is ±10000×10
-6
strain, but the product is designed to support
Balance adjustment of approximately ±14000×10
-6
strain.
In the case of the MRS-104A-S (4ch-Strain Transmitter), the measurement channels with balance adjustment
are implemented.
In the case of the MRS-101A-S (1ch-Strain Transmitter) or MRS-101A-SE (1ch-Strain Transmitter (EXT
Antenna)), only CH1 is implemented. (CH2 to CH4 are not implemented.)
• When Balance adjustment is successful:
1) When the "BAL" switch is pressed, both the "BAL" LED and "DATA" LED of the measurement channels
with balance adjustment light up in green.
2) The "BAL" LED remains lit in green, the "DATA" LED turns off, and Balance adjustment is complete.
Because the bridge unbalance value is negated, the receiver’s analog output becomes approximately 0 V.
• When Balance adjustment fails (due to poor sensor connection, etc.):
1) When the "BAL" switch is pressed, both the "BAL" LED and "DATA" LED of the measurement channels
with balance adjustment light up in green.
2) The "BAL" LED turns red, and the "DATA" LED turns off.
Because the bridge unbalance value cannot be negated, the receiver’s analog output remains as the bridge
unbalance value.
When no bridge is connected to the transmitter, the receiver’s analog output is approximately -5.4 V
(negative saturation voltage).
• When a wireless communication error occurs during Balance adjustment:
1) When the "BAL" switch is pressed, the "BAL" LED flashes in green.
2) The "DATA" LED lights up in red, and the buzzer sounds.
(The buzzer does not sound if "MUTE" is off.)
3) Both the "BAL" LED and "DATA" LED turn off.
Because Balance adjustment was not performed, the receiver’s analog output does not change.
"BAL" LED "DATA" LED Receiver Analog Output Status
Lit in green
●
Lit in green
●
(Lit for three
seconds)
Approximately 0 V
output
• If Balance adjustment is successful
Lit in red
●
Lit in green
●
(Lit for three
seconds)
Output of a value
corresponding to the
bridge unbalance value
• If Balance adjustment fails
Flashing in green
●
↓
Off
●
Lit in red
●
(Lit for three
seconds)
No change
• If Balance adjustment cannot be
performed
Try again in an environment that enables
normal wireless communication.
The receiver receives via both "MAIN" and "SUB" antennas but prioritizes data received from "MAIN."
For this reason, even if there are no wireless communication receiving errors, the "RSSI" LEDs may
switch between all lit and off depending on the sending/receiving environment.
This situation occurs when there is minimal "MAIN" RSSI (enough to avoid receiving errors) but ample
"SUB" RSSI (LEDs all lit).
In this case, adjust the "MAIN" antenna direction or take other measures to improve RSSI.
MEMO