- Low cost, compact design, easy to use
- Universal power: AC or DC
- Touch screen display with LEDs for easy visual indication
- Easy setup with pre-set purge programs for your application
- Automatic pressure compensation with digital manifold
- Rugged, corrosion-resistant housing
- Global third-party approvals for Class I, II, Div. 2 and Zone 2/22
| Product Description | ||
|---|---|---|
| 7500 series type Z & Ex pzc purge and pressurization control unit | ||
| General specifications | ||
|---|---|---|
| Equipment architecture | max. enclosure size 450 ft3 (12.7 m3) | |
| Operating mode | fully automatic (FA) | |
| Series | 7500 | |
| Hazardous environment | gas or dust | |
| Supply | ||
| Rated voltage | 20 … 30 V DC at 0.1 A 90 … 250 V AC , 50 … 60 Hz at 0.04 A without solenoid valve Supply voltage can be line-to-line or line-to-neutral, single phase OVC II |
|
| Power consumption | max. 2.7 W / 7.3 VA without valve | |
| Electrical specifications | ||
| Connection | screw terminals — see manual for specifications on wire size and torque values | |
| Output | ||
| Output I | ||
| Connection | K1, terminals, 1 x NO | |
| Output type | enclosure power contacts | |
| Contact loading | 5 A at 250 V AC , 5 A at 30 V DC, relays must be externally fused inrush current: 50 A | |
| Output II | ||
| Connection | K2, terminals, 1 x NO | |
| Output type | alarm and control contacts | |
| Contact loading | 5 A at 250 V AC , 5 A at 30 V DC, relays must be externally fused inrush current: 50 A | |
| Output III | ||
| Connection | K3, terminals, L1 powered contact | |
| Output type | solenoid manifold, contact | |
| Inrush current | 5 A | |
| Contact loading | 0.5 A at 250 V AC , 0.5 A at 30 V DC, relays must be externally fused | |
| Indicators/settings | ||
| LED indication | K1: Green – Contact K1 is energized (enclosure contacts) K2: Amber – Contact K2 is energized (alarm/control contacts) P/SV: Blue – Safe pressure P1 (minimum enclosure pressure) P/SV: Amber – Solenoid manifold is energized (purging/pressure compensation) |
|
| Pneumatic parameters | ||
| Protective gas supply | compressed air or inert gas, 5 µm filter, free from oil | |
| Pressure requirement | supply pressure: 20 … 120 psig (1.4 … 8.2 bar) | |
| Safe pressure | 0.25 in wc (0.63 mbar) minimum for gas 0.65 in wc (1.63 mbar) minimum for dust |
|
| Enclosure pressure | 0 … 10 in wc (0 … 24.8 mbar) | |
| Directive conformity | ||
| Electromagnetic compatibility | ||
| Directive 2014/30/EU | EN 61326-1:2013 , FCC CFR 47, part 15, subpart B: 2017, Class A ICES-003, Issue 6:2016, Class A ITE | |
| RoHS | ||
| Directive 2011/65/EU (RoHS) | EN 50581:2012 | |
| Conformity | ||
| Accuracy | pressure sensing: ± 0.125 in wc (0.31 mbar) timers: ± 5 % |
|
| Ambient conditions | ||
| Ambient temperature | Ambient temperature ranges depend on the T class. See the certificates. | |
| Storage temperature | -40 … 80 °C (-40 … 176 °F) | |
| Relative humidity | 5 … 90 %, non-condensing | |
| Altitude | max. 2000 m | |
| Vibration resistance | 5 … 100 Hz , 1 g, 12 m/s2, all axes | |
| Impact resistance | 30 g, 11 ms, all axes | |
| Mechanical specifications | ||
| Connection type | electrical: 2 x 1/2 inch NPTF (open from factory) 1 x M12 opening (plugged from factory) pneumatic: high-pressure port – 1/8 in NPTF, low-pressure port – 1/8 in NPTF |
|
| Degree of protection | Type 4X , IP66 | |
| Material | lens: Makrolon® GP-V polycarbonate screws: AISI 316 (1.4401), 304, or 18-8 stainless steel housing: A380, A356, or 6061-T6 aluminum mounting gasket: Bisco® HT-800 medium cellular silicone mounting tabs: SAE 304 stainless steel M12 plug: 6061-T6 aluminum |
|
| Mass | 710 g (1 lb 10 oz) | |
| Dimensions | 150 x 100 x 50 mm (5.9 x 4 x 2 in) | |
| Data for application in connection with hazardous areas | ||
| Certificate | ||
| Marking |  II 3 G Ex ec nC [pzc] IIC T6…T4 Gc II 3 D Ex tc [pzc] IIIC T60 °C … T80 °C Dc |
|
| International approvals | ||
| UL approval | ||
| cULus | Class I, Division 2, Groups A, B, C, D T4 (-40 °C ≤ Ta ≤ 70 °C) Class I, Division 2, Groups A, B, C, D T5 (-40 °C ≤ Ta ≤ 65 °C) Class I, Division 2, Groups A, B, C, D, T6 (-40 °C ≤ Ta ≤ 50 °C) Class II, Division 2, Groups F, G T4 (-40 °C ≤ Ta ≤ 70 °C) Class II, Division 2, Groups F, G T5 (-40 °C ≤ Ta ≤ 65 °C) Class II, Division 2, Groups F, G T6 (-40 °C ≤ Ta ≤ 50 °C) |
|
| IECEx approval | Ex ec nC [pzc] IIC T6…T4 Gc Ex tc [pzc] IIIC T60 °C … T80 °C Dc |
|
| General information | ||
| Supplementary information | Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com. | |
