System Control Drawing; Hazardous Location - Ametek BrightTEK ST9 Series Operator's Manual

2.7

System Control Drawing

HAZARDOUS LOCATION

CLASS 1 DIV. 1 GROUP D
LMS SENSOR OR OTHER
COMPATIBLE GAUGE,
MUST BE INTRINSICALLY
SAFE & TYPE; 4-20 mA
ONLY
CUSTOMER'S TANK
NOTES:
1. DO NOT INSTALL THE ST95 WHERE HAZARDOUS VAPORS ARE PRESENT.
2. INSTALLATION TO BE IN ACCORDANCE WITH MANUFACTURER'S INSTRUCTIONS.
REFER TO ST95 INSTALLATION MANUA L.
IF USING THE UPLINK MODEL ON PAGE 1 OF THIS DRAWING SEE ALSO CONNECTION CHART.
3. INTRINSICALLY SAFE CIRCUITS MUST BE WIRED AND SEPARATED IN ACCORDANCE WITH
THE NATIONAL ELECTRICAL CODE (ANSI/NFPA 70), OR OTHER LOCAL CODES, AS APPLICABLE.
4. THE REMOTE ST95M HOUSING MUST BE SUPPORTED FIRMLY USING THE OPTIONAL MOUNTING
BRACKET. LOCATE THE HOUSING IN A NON-CLASSIFIED AREA DEEMED TO BE SAFE.
5. TABLE 1 DEFINES THE INTRINSICALLY SAFE ENTITY PARAMETERS
6. THIS ASSOCIATED APPARATUS MAY ALSO BE CONNECTED TO A SIMPLE APPARATUS AS DEFINED
IN ARTICLE 504.2 AND INSTALLED AND TEMPERATURE CLASSIFIED IN ACCORDANCE WITH ARTICLE 504.10(B)
OF THE NATIONAL ELECTRICAL CODE (ANSI/NFPA 70), OR OTHER LOCAL CODES, AS APPLICABLE.
7. CAPACITANCE AND INDUCTANCE OF THE FIELD WIRING FROM THE INTRINSICALLY SAFE EQUIPMENT TO
THE ASSOCIATED APPARATUS SHALL BE CALCULATED AND MUST BE INCLUDED IN THE SYSTEM CALCULATIONS
AS SHOWN IN TABLE 1. CABLE CAPACITANCE, CCABLE, PLUS INTRINSICALLY SAFE EQUIPMENT CAPACITANCE
CI MUST BE LESS THAN THE MARKED CAPACITANCE, CA (OR CO), SHOWN ON ANY ASSOCIATED APPARATUS USED
THE SAME APPLIES FOR INDUCTANCE (LCABLE, LI AND LA OR LO, RESPECTIVELY). WHERE THE CABLE CAPACITANCE
AND INDUCTANCE PER FOOT ARE NOT KNOWN, THE FOLLOWING VALUES SHALL BE USED:
CCABLE = 60 PF/FT., LCABLE = 0.2 uH/FT.
8. WHERE MULTIPLE CIRCUITS EXTEND FROM THE SAME PIECE OF ASSOCIATED APPARATUS, THEY MUST BE INSTALLED
IN SEPARATE CABLES OR IN ONE CABLE HAVING SUITABLE INSULATION. REFER TO ARTICLE 504.30(B) OF THE NATIONAL
ELECTRICAL CODE (ANSI/NFPA 70) AND INSTRUMENT SOCIETY OF AMERICA RECOMMENDED PRACTICE ISA RP12.6 FOR
INSTALLING INTRINSICALLY SAFE EQUIPMENT.
9. THIS ASSOCIATED APPARATUS HAS NOT BEEN EVALUATED FOR USE IN COMBINATION WITH ANOTHER
ASSOCIATED APPARATUS.
10. THE ST95 UPLINKS ARE SUPPLIED WITH A FACTORY WIRED CABLE OF 50 FT. IN LENGTH HAVING THE FOLLOWING.
CHARACTERISTICS:
- TYPE: 8 CONDUCTOR SHIELDED CABLE
- RATED VOLTAGE: 300 Vrms
- SHIELD: ALUM/MYLAR FOIL
- TEMPERATURE RANGE: 80 DEG C
- CONDUCTOR SIZE: 24 (7/30) AWG
- INSULATION TYPE: PVC
- JACKET INSULATION THICKNESS: 0.030 INCHES
- CERTIFICATIONS: UL AWM/STYLE 2464. LISTING AVLV2-E319028
11. SUITABILITY FOR INSTALLATION IN PARTICULAR APPLICATIONS IS AT THE DISCRETION OF THE AUTHORITY
HAVING JURISDICTION (AHJ).
12. THE UPLINK CONFIGURATION IS TERMINATED ON THE LEFT SIDE OF THE DWG. THE CABLE IS 10 FEET LONG.
THE CUSTOMER SENSOR MUST BE DEFINED AND WIRED BY THE CUSTOMER.
SEE TABLE FOR CABLE COLORS AND FUNCTION FOR THE UPLINK.
41-622 BrightTEK ST9x Operator Manual
™
ST95 UPLINK FAMILY
SECURELY MOUNT
ST95 MONITOR USING
UNIVERSAL MTG KIT
TABLE 1:
I.S. Equipment Associated Apparatus
V max (or Ui) ≥ Voc or Vt (or Uo)
I max (or Ii) ≥ Isc or It (or Io)
P max, Pi ≥ Po
Ci + Ccable ≤ Ca (or Co)
Li + Lcable ≤ La (or Lo)
= 27.45V
= 0.077A
= 0.524W
= 1.12uF
= 24mH
9