VentisProCN

2017-02-21 14:50:08   0  举报

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VentisProCN是一款高效、专业的通风系统解决方案，专为满足中国市场需求而设计。凭借其先进的技术和创新的设计，VentisProCN为用户提供了卓越的空气净化和舒适度，适用于各种商业和住宅环境。通过精确的气流控制和智能化的监控系统，VentisProCN确保了室内空气质量的持续改善，同时降低了能源消耗和维护成本。此外，VentisProCN还具备高度可定制性，能够满足客户独特的需求和预算。总之，VentisProCN是您理想的通风系统选择，为您的生活和工作环境带来清新、舒适的空气。

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Introduction

Scope

General

Glossary

Alarm，Sensor and/or Detector Reliability Prediction

4.1 Reliability Prediction for an alarm, assembly or circuit

Section 2.0 MIL-HDBK 217F: 4 failures per milliion hours

Appendix A MIL-HDBK 217F: 3.5 failures per million hours

4.2 Reliability Prediction for a sensor or a individual components

Section 3.4 MIL_HDBK 217F: 2.5 failures per million hours

4.3 Components Exception for the above test

a) Results in energization of an audible trouble signal, energization of a separate visual indication, or de-energization of a power-on light

b) Does not effct the normal operation or sensitivity

c) evaluated by specific performance tests included in the standard

4.4 Exceptions: integral or remote accessory

4.5 For Customed Chips: Less than 2.5 failure per million

Test Method: See Appendix SA

4.6 Sensor or sensing component supervision system

a) MIL 217-F : less than 2.5 failures per million hours operation

b) Supervision of the predicted failure mode

c) Supervision of sensor drift beyond 5% of the predicted operation range

Installation and Operation Instructions

Document for test

Compatibility

CONSTRUCTION

Assembly

General

Remote Access

Sensitivity indicating means

All Products

General

Enclosure

9.1 General

9.2 Metallic Material

9.3 Polymeric meterial

9.3.1 need to comply with UL 746C

9.3.2 Polymeric material used to be attached to or exposed on the outside, shall have the flammability characteristics

9.3.3 Conductive coating to nonmetarial surfaces shall comply with UL746C

9.3.4 A polymeric enclosure for connection to a rigid metallic conduit

9.4 Sensitivity Adjustment

Removal of a snap-on cover to gain access to the sensitivity control is
permissible only when no hazardous voltage parts are able to be contacted by the user

9.5 Supplementary signal feature

be evaluated to the applicable requirements and determined suitable for its intended application

9.6 Sharp edges

needs to round the corner as not to injury user

9.7 Ventilating opening

Ventilating openings request

perforated sheet metal used for expaned metal mesh shall not be less than 0.042 inch in average thickness when zinc coated

conditions to use expanded metal mesh 0.021 inch think, or zinc coated perforated sheet metal 0.024inch

The size of wire forming a screen protecting hazardous-voltage parts shall not be smaller than 16AWG and the screen openings shall not be greater than 1/2 square inch

9.8 Covers

Request for enclosure cover

The request for periodic maintenance remove cover

if not periodic remove cover, should be secured

hinged cover is not required where the only fuse enclosed is intended to provide protection to portions of internal circuits.

hinged cover: No screw, latch or catch/ unhinged cover securely held by screws

9.9 Battery Removal Indicator

request

9.10 Transparent Panel

thickness request for glass cover

other transparent material request

mechanically equivalent to glass

not distort

not become less transparent at the temperature (normal service conditions)

lens, light filter,or similar transparency shall not be diminished by the condition

9.11 Accessibility of uninsulated live parts, film-coated wire, and moving parts

an opening in an enclosure shall have a
minor dimension less than 1 inch

shall not be contacted by the probe(page 24)

9.11.2 The request for the probe detect

apply to any depth

e ratated and angel to any position

applied in any possible configuration

9.11.3 using the probe

used to measuring instrument to evaluate the accessibility of opening

not to evaluate the strength of a material

applied with minimum force

the part of enclosure can be removed or opened without tool should be removed or opened

10 Spacing

10.1 Spacing between uninsulated live parts an d the enclosure or dead metal parts and between uninsulated live parts of opposite polarity

10.2 PCBA Clearance A

10.3 PCBA Clearance B

10.4 Pollution degree

10.5 Switching test

11 Corrison Protection

WIRING

12 Permanent Connection

12.1 General

12.2 Field-wiring compartment for hazardous voltage connection

12.3 Field-wiring terminals

12.4 Field-wiring leads

12.5 Grounded supply terminals and leads

12.6 Internal Wiring

13 Servicing Protection

13.1 General

13.2 Trained service personal

Performance

14 General

15 Sensitivity requirements

15.1 The requirements to the sensitivity

a) This standard

b) UL2034

c) UL1484 , LEL Alarm <= 25%LEL

d) TWA required by NOISH

e) ANSI ISA 12.13.01 Alarm for signal up to and above LEL

15.2 Special claims should be verified

15.3 Verify each gas for detector

15.4 Verify each gas for sensor

15.5 The use of General-purpose Signaling System that utilizes detectors, sensors or alarms as initiating devices : UL 864, UL 2017

15.6 Calibration

Calibration procedure shall be outlined in Instrument Manual and verified

15.7 Test Equipment

a) Chamber at least 1 cubic foot(0.0283m3)

b) Ambient temperature at 23+/-3 degC or a higher temperature

c) Relative humidity at 50+/- 20 percent

d) Oxygen concentration at 20.9+/-1 percent

e) Supply Voltage, if applicable, adjusted to 100 percent of rated input voltage

15.8 selectivty

15.8.1 Not alarm in the table gas; For residential or commercial applications, cross sensitivity and contaminations and gas concentrations are to be specified.

15.8.2 Calculate test chamber interior volume, calculate test substance necessary

15.8.3 ventilate the chamber for 15min +/- 5 min

15.8.4 add substance by syringe or equivalent device.

15.8.5 remain the device for 2 hours

15.8.6 remove the test atmosphere and maintain clean air for 16hours

then repeat by the next substance

15.8.7 do the sensitivity

16 Sensitivity Requirements

16.1 shall operate for all conditions of its intended performance

16.2 shall consistently alarm at levels within 5 percent of the gas concentration levels

16.3 for multiply stations, the link of the alarms between all the staitions

16.4 test gas or vapor individually as specifed

17 Electrical Supervision Test

17.1 General

17.1.1 Four siturations which the alarm should work in 200 seconds

a) An instantaneous failure or removal of a limited life components

Exception: the alarm power removed

b) An open in an externally connected alarm circuit

c) Electronically or optically detectable failure modes because of aging

d) A ground fault in any externnally connected wiring

17.1.1.1 if drop test effects, then shall comply with 17.1.1

17.1.2

Wiring between alarms to a control assembly shall be electrically supervised

An open in the wiring between alarms is not required if the operation as a single station is not prevented

Exception: interconnected wiring of alarms intended to be connected by a Class 1 wiring method

Exceptions: sensor with a failure rate less than 2.5 failure per million hours is not required to be supervised.

17.1.3 For aspired asseblies, the sample draw portion of the system shall be electrically supervised

17.1.4 How to test electrical supervision

17.1.5 the gas alarm or sensor's priority is higher than other fault alarm

17.2 AC Powered units

17.3 Battery powered units

17.3.1 should producing alarm signal for at least 12 hours at the battery voltage; Following the alarm signal , the soure of supply shall be capable of providing 7 days of audible trouble signal indication

?? 7 days

17.3.2 Test 17.3.1 3 sample ; placed in alarm for 12 hours; test 7 days trouble alarm.

17.3.3 in alarm latch mode, when battery is below trouble voltage, the alarm shall transfer to audible trouble

17.3.4 How to test 17.3.3

17.4 Components Failure

Critical, limited life electronic component with no trouble signal, shall use reliable components

17.5 External Wiring

18 Strain Relief Test

18.1 Cord-connected products

18.1.1 define

18.1.2 How to do test

18.1.3 Exceptions for constructed or molded polymeric meterial, additional test

18.2 Filed-connected leads

18.2.1 Request to field-connected leads

18.2.2 Exception for ploymeric meterial

19 Circuit Measurement Test

19.1 Current Input

Except for battery operated device, input current limit (10% of rating)

19.2 Battery trouble voltage determination

19.2.1

An increase in the internal resistance, or a decrease in terminal voltage, of a battery employed as
the primary source of power to an alarm shall not impair operation of an alarm signal before a trouble
signal is obtained

Additional , See Battery Test , Section 46

19.2.2 trouble level of battery operated alarm shall be determined for

a) rated battery voltage

b) Trouble level voltage

c) voltage between rated and troulbe level voltage

20 Electric Shock Current Test

20.1 Exposed open circuit exceeds 42.4V should comply with 20.2 &20.4

20.2 continuous current flow through a 500-ohm resistor shall not exceed the values specified in Table

20.3

20.4 The capacitance value limit table

20.5 ??

20.6 ??