IM100CZ08-E9
OCT
. 2011
SUPRON is a registered trademark of SII Micro Parts Ltd.
Company names and product names used in this manual are the trademarks or registered trademarks of the respective companies.
The first edition: MAR. 1998
The ninth edition: OCT. 2011 [IMQ00]
HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN
PHONE: 03-3751-9799 (+81 3 3751 9799)
E-mail: [email protected]
FAX:
03-3751-8585 (+81 3 3751 8585)
®
RKC INSTRUMENT INC.
Website: http://www.rkcinst.com/
Linearity:
Same
as
Accuracy
Hysteresis:
SUS630 diaphragm specification type
[At diaphragm temperature of 150
°
C]
:
The range of 50 MPa or less:
±
0.5 % of span
The range of 70 MPa or less:
±
1.0 % of span
The range of 100 MPa or more:
±
2.0 % of span
SUPRON diaphragm specification type
The range of 70 MPa or less:
±
1.0 % of span
More than 480
°
C of 10 MPa, 20 MPa and 70 MPa range:
±
2.0 % of span
The range of 100 MPa:
±
2.0 % of span
480
°
C or more:
±
4.0 % of span
Repeatability:
SUS630 diaphragm specification type
[At diaphragm temperature of 150
°
C]
:
±
0.2 % of span
SUPRON diaphragm specification type
±
0.2 % of span
More than 480
°
C of 10 MPa, 20 MPa, 70 MPa and 100 MPa range:
±
0.4 % of span
Zero balance:
±
0.6 mV/V (
±
40 % of span)
Bridge resistance:
Input
side*:
350
±
5
Ω
, Output side: 350
±
5
Ω
* As the input side of bridge resistance, the 374±10
Ω
type is also available.
This type is interchangeable with the 350±5
Ω
type.
•
Temperature characteristics
Maximum diaphragm:
SUS630 and HASTELLOY C diaphragm specification types: 400
°
C
SUPRON diaphragm specification type: 550
°
C
Maximum strain gauge temperature:
200
°
C
When the temperature at the bottom of outer tube (nut side) is
more than 180
°
C, the temperature at the strain gauge exceed
200
°
C. *
* If the temperature at the strain gauge exceed 200
°
C, the performance
cannot be assured. Therefore, cover the heat source with a heat
insulating material so that the above temperature does not exceed
200
°
C.
The temperature at the strain gauge can be expected not to rise when:
•
the long type of sensor is used or
•
the sensor is installed aslant or transversely.
If any of the above measures can be taken, take it.
Zero shift due to temperature change:
SUS630 diaphragm specification type [As to diaphragm temperature]:
±
0.2 % of span /10
°
C,
±
0.3 % of span /10
°
C (the range of 10 MPa and 150 MPa),
±
0.4 % of span /10
°
C (only the “0.5 MPa” range)
SUPRON diaphragm specification type [As to diaphragm temperature]:
0.1
±
0.2 % of span /10
°
C
Output (sensitivity) shift due to temperature change:
SUS630 diaphragm specification type [As to diaphragm temperature]:
±
0.2 % of span /10
°
C,
±
0.3 % of span /10
°
C (the range of 10 MPa and 150 MPa),
±
0.4 % of span /10
°
C (only the “0.5 MPa” range)
SUPRON diaphragm specification type [As to diaphragm temperature]:
0.15
±
0.2 % of span /10
°
C
•
Mechanical characteristics
Allowable over pressure:
120 % of span (0.5 MPa: 1000 % of span, 1 MPa: 500 % of span)
Limited over pressure:
150 % of span (0.5 MPa: 2000 % of span, 1 MPa: 1000 % of span)
Fixing screw section material:
SUS630
Lead pipe cover material:
SUS304 (Fixed nut type only)
Diaphragm material:
SUS630, HASTELLOY C, SUPRON
Recommended tightening torque:
Fixed nut type: 30 N
･
m (300 kgf
･
cm)
Loose nut type: 60 N
･
m (600 kgf
･
cm)
For the HASTELLOY C diaphragm type specification, contact
our sales office or your nearest RKC sales agent.
Temperature measurement section (Optional)
Temperature sensor type:
Thermocouple: K or J (Ungrounded junction)
Maximum operating temperature:
K type: 550
°
C
J
type: 450
°
C
Temperature detection position:
Internally 2 mm from a diaphragm
Response time:
Approx. 90 seconds
(room
temperature
→
100
°
C, 98 % response)
Connector:
Mini-connector
(Continuous operating temperature 140
°
C)
Flexible tube:
Material: SUS304 (External diameter
φ
5.6)
Bending radius: 19 mm or more
9. EXPLANATION OF EACH
TERMS
Term Explanation
Rated pressure
The maximum pressure which satisfies the
specification. There are stipulated pressure ranges.
Rated output
Value obtained by subtracting the output at no-load
from that at the rated pressure load. Electrically, it is
output voltage per Volt in DC (mV/V) obtained
through the bridge circuit when rated pressure is
applied. At an application voltage of 10 V from the
converter, a voltage of mV
×
10 is output.
Accuracy
The maximum error including linearity and
hysteresis.
Linearity
The maximum error from a reference line (straight
line without error) when pressure-loaded in the
pressure rise direction continuously from no-load to
the rated pressure.
Hysteresis
The maximum difference between pressures at the
same point in the rise and fall directions when the
same pressure is loaded.
Repeatability
The difference between measured values obtained
each time when pressure-loaded three times
repeatedly from no-load to the rated pressure within
a short period of time*.
Temperature effect
on zero point
Zero-point output variation when the diaphragm
temperature changes by 10
°
C.
Temperature effect
on output
(sensitivity)
Output sensitivity (span) variation when the
diaphragm temperature changes by 10
°
C.
Allowable
overpressure
The high limit of overpressure within a short period
of time* at which the accuracy can be guaranteed
even after the pressure returns to the rated pressure
when overpressure-loaded.
Limit overpressure
The high limit of overpressure within a short period
of time* at which no diaphragm is damaged when
overpressure-loaded. However, no accuracy is
guaranteed after the pressure returns to the rated
pressure.
* Short period of time: From several seconds to several minutes.