Description
PPM BOXES
Free-standing or rackmount units incorporating Sifam Peak Programme Meters. Refer to Sifam PPM entry for detailed meter descriptions.
This range of boxed PPMs utilise mild steel enclosures to provide effective screening when used in proximity to colour monitors or VDUs. Care should still be exercised however when used in extremely close proximity to colour screens as some stray magnetic field may be present around the visible meter glass aperture.
Most versions incorporate overload LEDs to indicate the presence of signals which exceed a preset threshold (factory set at +8dBu). Stereo versions incorporate a switch to select the M (sum) level. “IND” setting will display an M level of 0dBu when 0dBu signals are present on both of the A and B inputs. “BBC” setting will display an M level of +3dBu when 0dBu signals are present on both the A and B inputs.
To allow the meters to be used in-line, input connectors have corresponding loop-out connectors wired in parallel. All types are illuminated using appropriate LED illumination kits.
Features of the standard types are as follows:
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Type A | One input connector, one loop-out connector, one 32AF meter, one overload LED. |
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Type B | Two input connectors (stereo, or two channel use), two loop-out connectors, two 32AF meters, two overload LEDs. This type has no A/B M/S switching. |
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Type C | Two input connectors (stereo use), two loop-out connectors. One type 74B meter which is switchable A/B M/S and M/S+20dB. Two overload LEDs. One rear panel mounted “IND/BBC” M level display switch. |
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Type D | Two input connectors (stereo use), two loop-out connectors. One type 74B meter permanently reading A/B. One type 74A meter switchable M/S and M/S+20dB. Two overload LEDs. One rear panel mounted “IND/BBC” M level display switch. |
All units are available in a choice of four case styles:
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Free-standing: | Natural ash over full steel lining, with grey front and rear panels |
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| Black ash over full steel lining, with black front and rear panels |
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Rackmount (3U): | Grey front panel |
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| Black front panel |
Manufactured by Canford.
Technical Specification:
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Power: | 230VAC, IEC320 connector (mating connector not supplied) |
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Input connector: | XLR 3-pin female |
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Loop-out connector: | XLR 3-pin male |
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Dimensions: | 278 (w) × 168 (d) × 151 (h)mm (free-standing) |
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| 483 (w) × 231 (d) × 3U (h) (rackmount) |