M-system 6BTS1 User manual

BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Transmitter module (body + CJC sensor)..........................(1)
Outdoor enclosure ...............................................................(1)
Mounting screws
Bolt (M8 × 15)....................................................................(4)
Spring washer for M8 .......................................................(4)
Mounting bracket assembly (optional)
Mounting bracket..............................................................(1)
M10 U-bolt.........................................................................(2)
Nut for M10 .......................................................................(4)
Spring washer for M10 .....................................................(4)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
POINTS OF CAUTION
■GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
■ENVIRONMENT
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -5 to +70°C
(23 to 158°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
■WIRING
• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).
• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■AND ....
• The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
THERMOCOUPLE TRANSMITTER
(eld-congurable, non-linearization) MODEL 6BTS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8861 P. 1 / 6
INSTRUCTION MANUAL

COMPONENT IDENTIFICATION
Case
Specifications
Transmitter Module
Gasket
Cover
Internal Earthing Screw
External Earthing Screw
Spring Clip(s)
Knurled Knob(s)
Cable Entry Conduit
•Case Details
6BTS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8861 P. 2 / 6

EXTERNAL DIMENSIONS unit: mm (inch)
4–M8, 12 deep
92 (3.62)
110 (4.33)
70 (2.76)
118 (4.65)
7 (.28)
max.
39 (1.54)
19 (.75)
92 (3.62)
104 (4.09)
14
(.55)
26
(1.02)
MOUNTING BRACKET
(optional)
110 (4.33) dia.
19 (.75)
2–G 1/2, 1/2NPT, M20x1.5 or PG13.5
174 (6.85)
114 (4.49)
110 (4.33)
SPACE REQUIRED TO REMOVE COVER
6BTS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8861 P. 3 / 6

INSTALLATION
■MOUNTING THE ENCLOSURE ON A PIPE ■MOUNTING THE ENCLOSURE ON A WALL
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
Attach the CJC sensor together with input wiring to the
input terminals. The CJC sensor is not interchangeable.
Check that its serial number is identical to that of the unit.
+
–
T / C
CJC
SENSOR
metal leg
model: CJM
comp. leadwire
1
3
2
+
–
4
red
black
+
–
LOAD
6
5
OUTPUT
24V DC
4 – 20mA DC
WIRING INSTRUCTIONS
■SCREW TERMINAL
Torque: 0.6 N·m
CHECKING
Open the unit’s outdoor enclosure cover when you conduct
checking of the transmitter. Be sure to close the cover after
the checking is complete.
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Input: Check that the input voltage is within 0 – 100% of
full-scale.
If the thermocouple or its extension wires are broken, the
output goes over 100% (below 0% with downscale) due to
burnout function. Check leadwires in such a case.
3) Output: Check that the load is within the permissible
limit including wiring resistance.
Load Resistance (Ω) = Supply Voltage (V) – 13 (V)
0.02 (A)
(including leadwire resistance)
6BTS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8861 P. 4 / 6

ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
For matching the signal to a receiving instrument or in case
of regular calibration, adjust the output as explained in the
following.
■PREPARATION
1) Open the outdoor enclosure cover.
2) Release knurled knobs (A) at the front of the transmitter
and open the top cover.
3) Remove three screws (B), four screws (C), two spring clips
and take out the circuit boards from the housing.
4) After the calibration is complete, refit the spring clips,
screws and close the covers by performing the above pro-
cedure in the reverse order.
AA
B
CC
B
1234
56
SW3 SW2
VR4 VR5
VR1 VR2
TP1 VR3
SW1
SW1 : CJC Selector
SW2 : Zero Bias Selector
SW3 : Span Gain Selector
VR1 : 0% Adjustment (ne)
VR2 : 100% Adjustment (ne)
VR5 : 0% Adjustment (coarse)
VR4 : 100% Adjustment (coarse)
VR3 : CJC Sensor Adjustment
■THERMOCOUPLE TYPE SELECTION
1) Adjust SW1 (rotary code switch) to an appropriate po-
sition for customer’s thermocouple type. Positions are
shown in the illustration below.
3
SS-10
SW1
•6
51 42
1 : PR, R, S thermocouples
2 : K (CA) thermocouple
3 : E (CRC) thermocouple
4 : J (IC) thermocouple
5 : T (CC) thermocouple
6 : B thermocouple
■INPUT BIAS ADJUSTMENT (0% temperature)
Check first electromotive force (mV) for 0% (and 100%) tem-
perature in Thermocouple Reference Table.
1) Close across the front terminal 2 – 3 and remove tem-
perature sensor connected to voltage generator as in the
above illustration. (Canceling cold junction compensa-
tion)
2) Connect a digital voltmeter across the front terminal 2
(–) and TP1 (+).
3) With minimum (0%) input, adjust SW2 to appropriate po-
sitions – nearest to desired value – according to Table 1
[INPUT BIAS SELECTION TABLE], and adjust output
reading to 0 ±0.002V with VR5 (zero-coarse adjustment).
4) With minimum (0%) input, adjust output to 0 ±0.05%
with VR1 (zero-fine adjustment).
■INPUT RANGE ADJUSTMENT (100% temperature)
5) With maximum (100%) input, adjust SW3 to appropriate
positions according to Table 2 [INPUT RANGE SELEC-
TION TABLE], and adjust output to 100 ±0.05% with
VR4 (span-coarse adjustment) and VR2 (span-fine ad-
justment).
6) With minimum (0%) input, check that input is 0 ±0.05%.
When the ZERO point is changed, repeat the procedure
2) to 5).
■COLD JUNCTION COMPENSATION ADJUSTMENT
7) Connect temperature sensor to the voltage generator
again and remove shortcircuit across the terminal 2 – 3.
8) With minimum (0%) input, adjust output reading to 0%
with VR3.
■OUTPUT ZERO & SPAN ADJUSTMENT
1) ZERO: Apply 0% input and adjust output to 0% with the
VR1.
2) SPAN: Apply 100% input and adjust output to 100% with
the VR2.
3) Check ZERO adjustment again with 0% input.
4) When ZERO value is changed, repeat the above proce-
dure 1) – 3).
MAINTENANCE
Regular calibration procedure is explained below:
■CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the “ADJUST-
MENT PROCEDURE” explained earlier.
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.
6BTS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8861 P. 5 / 6

TABLES
■INPUT BIAS SELECTION TABLE
[TABLE 1]
SW2 WEIGHT OF BIT
12345678
1 1 0 0 0 0 0 0 +76 mV
1 0 1 0 0 0 0 0 +38 mV
1 0 0 1 0 0 0 0 +19 mV
1 0 0 0 1 0 0 0 +10 mV
1 0 0 0 0 1 0 0 + 5 mV
1 0 0 0 0 0 1 0 + 2.5mV
1 0 0 0 0 0 0 1 + 1.2mV
1 0 0 0 0 0 0 0 + 0 mV
0 1 1 1 1 1 1 1 – 1.5mV
0 1 1 1 1 1 1 0 – 2.5mV
0 1 1 1 1 1 0 1 – 3.5mV
0 1 1 1 1 0 1 1 – 6 mV
0 1 1 1 0 1 1 1 –11 mV
0 1 1 0 1 1 1 1 –20 mV
0 1 0 1 1 1 1 1 –39 mV
0 0 1 1 1 1 1 1 –76 mV
Note 1: The SW2-1 is turned ON (1) with suppressed zero
range, while it is turned OFF (0) with elevated zero
range.
Note 2: With suppressed zero range, weight of bit (mV) is
added by turning ON (1) each one of the SW2-8 to
SW2-2, while with elevated zero range, it is added by
turning OFF (0) the same.
For example, 20mV bias (zero suppression) is nearly
obtained by turning on SW2-1 (positive), SW2-4 and
SW2-8 (19mV + 1.2mV = 20.2mV).
Note 3: When the test pin reads a positive voltage, turning one
bit ON (1) decreases the bias.
When the test pin reads a negative voltage, turning
one bit OFF (0) increases the bias.
■INPUT RANGE SELECTION TABLE
[TABLE 2]
SW3 GAIN SPAN [mV]
100%IN – 0%IN
12345678
1 1 1 1 1 1 1 1 1 – 2 50 – 100
1 1 1 1 1 1 1 0 2 – 3 33 – 50
1 1 1 1 1 1 0 1 3 – 4 25 – 33
1 1 1 1 1 1 0 0 4 – 5 20 – 25
1 1 1 1 1 0 1 1 5 – 6 16.7 – 20.0
1 1 1 1 1 0 1 0 6 – 7 14.3 – 16.7
1 1 1 1 1 0 0 1 7 – 8 12.5 – 14.3
1 1 1 1 1 0 0 0 8 – 9 11.1 – 12.5
1 1 1 1 0 1 1 1 9 – 10 10.0 – 11.1
1 1 1 1 0 1 1 0 10 – 11 9.0 – 10.0
1 1 1 0 1 1 1 1 11 – 12 8.3 – 9.0
1 1 1 0 1 1 1 0 12 – 13 7.7 – 8.3
1 1 1 0 1 1 0 1 13 – 14 7.3 – 7.7
1 1 1 0 1 1 0 0 14 – 15 6.7 – 7.3
1 1 1 0 1 0 1 1 15 – 16 6.3 – 6.7
1 1 1 0 1 0 1 0 16 – 17 5.9 – 6.3
1 1 1 0 1 0 0 1 17 – 18 5.6 – 5.9
1 1 1 0 1 0 0 0 18 – 19 5.3 – 5.6
1 1 1 0 0 1 1 1 19 – 20 5.0 – 5.3
1 1 1 0 0 1 1 0 20 – 21 4.8 – 5.0
1 1 0 1 1 1 1 1 21 – 22 4.5 – 4.8
1 1 0 1 1 1 1 0 22 – 23 4.3 – 4.5
1 1 0 1 1 1 0 1 23 – 24 4.2 – 4.3
1 1 0 1 1 1 0 0 24 – 25 4.0 – 4.2
1 1 0 1 1 0 1 1 25 – 26 3.8 – 4.0
1 1 0 1 1 0 1 0 26 – 27 3.7 – 3.8
1 1 0 1 1 0 0 1 27 – 28 3.5 – 3.7
1 1 0 1 1 0 0 0 28 – 29 3.4 – 3.5
1 1 0 1 0 1 1 1 29 – 30 3.3 – 3.4
1 1 0 1 0 1 1 0 30 – 31 3.2 – 3.3
1 1 0 0 1 1 1 1 31 – 32 3.1 – 3.2
1 1 0 0 1 1 1 0 32 – 33 3.0 – 3.1
Note 1: Gain indicates the multiplying factor adjustable with
SW3.
Note 2: Gain is calculated by using the following equation:
Gain = 2000 (mV)
20 (V100% – V0%)
Where V100% = input span
V0% = input zero
Add an weight of bits according to the gain value.
For example, with 0 – 4.2mV input, the calculated
gain, 23.8, is rounded to either 23 or 24.
Then turn off (0) SW3-3 and SW3-7.
Alternately, turn off (0) SW3-3, SW3-7 and SW3-8.
6BTS1
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8861 P. 6 / 6